Alright, I took a look at your list and made you a list what you should/shouldn't use and so on. When you have decided what you want and what not, post a list and I will see what should work from the beginning on.
Those here have the same functions.
Animated Battlebacks - SephirothSpawn &
Animated Battle Background in Tons of Add-ons
SP Cost Modifiers - SephirothSpawn & PROBABLY
SP Cost Mod in Tons of Add-ons
Dymanic Enemies Drops - SephirothSpawn PROBABLY
Multi-Drop in Tons of Add-ons (If you need that, sure, but people usually don't.)
Enhanced BattleStatus Window - SephirothSpawn & PROBABLY
Window_BattleStatus Add-on in Tons of Add-ons
Skill Learn Display - SephirothSpawn & INCLUDED in
Easy LvlUp Notifier by Blizzard
Game Difficulty - SephirothSpawn (OR
Game Difficulty (Alt) - SephirothSpawn) &
Different Difficulties in Tons of Add-ons
Party Switcher + Extra Parties - SephirothSpawn &
Easy Party Switcher by Blizzard
Leon's Change Map Troop - Leon & PROBABLY
Encounter Control - SephirothSpawn
Credits - Original Creator Unknown/MiDas Mike & INCLUDED in Tons of Add-ons (Actually it's not included, but the
Picture Movie Scene might be more useful. Again, it depends on what that Credits script does.)
Gradient Bars - AcedentProne &
Blizz-Art Gradient Styler in Tons of add-ons (Depends on which style you like more.)
Battle Result - A3D &&
Easy LvlUp Notifier - Blizzard (Depends on the style you like more.)
Keyboard Script - Cybersam &
Keyboard Input Module - Near Fantastica (Basically the same, aren't they? Use it only if you want stuff like custom controls and/or configurable and have the appropriate scripts. Otherwise I don't really see a point in using them.)
Those are scripts that you should use or that are at least very useful.
Default Scripts - Enterbrain (In any case. xD)
Caldaron's Time - Caldaron (Do you need something like that?)
Multiple Animations - SephirothSpawn (Only if you need it, people rarely do.)
Virtual Database - SephirothSpawn (If you need something like this, people rarely do.)
Analog Movement - SephirothSpawn (If you want that in your game, use it.)
Auto-Save System - SephirothSpawn (If you want that in your game, use it, but only if it's a script that saves automatically, not one that calls the save screen, because this can be done with one event command.)
Character Class Graphics - SephirothSpawn (Most probably incompatible with many CMS-es and other custom menus.)
Character Icon Graphics - SephirothSpawn (Most probably incompatible with many CMS-es and other custom menus.)
Class Based Stats - SephirothSpawn (If you have a custom job/class system this can come quite in handy.)
Enhanced Item Parameters - SephirothSpawn (If you really something like that.)
Equipment Autostates - SephirothSpawn (If you need more than one auto-state, sure, use it.)
Skills Use Items - SephirothSpawn (Do you need that?)
Learn Skills from Items - SephirothSpawn (ONLY if it allows to select the actor who should learn it. Otherwise, use events.)
Materia System - SephirothSpawn (Do you want to make yet another copy of FFVII?)
Sphere Grid System - SephirothSpawn (Or do you want to make a copy of FFX?)
Tons of Addons - Blizzard (Depends on what you need. Usually a good choice.)
Custom Menu Systems (A must, but you need to decide which.)
Action Battle Systems (Either that or some other CBS.)
Message Scripts (If you want a fancy message system, use one of them.)
Multi Starting Points - Fantasist (If you have a need for it, use it. You can make it with events, but it won't look that nice.)
Advanced Time System - Near Fantastica/Dubealex (If you need something like that, sure.)
Virtual Fish/Pet System - DustCollector (If you need it.)
Crafting System - Leon (If you want that feature for your game, sure. Or you can wait for my Creation System.)
Dialog System - Zeriab (Makes some thing maybe easier. But you might wanna stick to the evented version.)
Leon's Mission Script - Leon (Like a quest log? Do you need that?)
Chaos Rage Limit System - Blizzard (Do you want that?)
Scene_SoulRage - Blizzard (If you want to spice up CLRS, sure, use it.)
Soul Force Combo System - Blizzard (If you want to spice up CLRS, sure, use it.)
Custom Stat Growing System - Blizzard (Do you need something like that?)
Stat Distribution System - Blizzard (It is a pretty popular system.)
RO Job/Skill System - Blizzard (Made on request, you might find it useful.)
Those here scripts that can be usually added/removed whenever you feel like it You don't have to decide from the beginning if you wanna use them.
Resource Tester - Blizzard (Use it when you're done with your game.)
Map Screenshot Maker - SephirothSpawn (Who needs that? But you can add it anytime without problems if you find a need for it.)
Sprite Blink Colors - SephirothSpawn (See the above.)
Scroll Status Display - SephirothSpawn (You can add it anytime you want.)
Dymanic Enemies - SephirothSpawn (Could add some spice to your game later.)
Dymanic Enemies Actions - SephirothSpawn (Same as above, but could lead to inconsistency.)
Advanced Title Screen - SephirothSpawn (You can change your title whenever you want. Actually if it's just animated, you have that in Tons of Add-ons, too.)
Keyword Encyclopedia - SephirothSpawn (You can add it whenever you feel the need for it.)
Battle Equipping - SephirothSpawn (If you want that, sure.)
Battle Switching - SephirothSpawn (Be careful if you decide to use this, it might lead to inconsistency in your game.)
Escaping Cost - SephirothSpawn (Adding spice to the game. You can do it anytime.)
Battle Command Memory - SephirothSpawn (Functionality add-on. Might wanna know that it could cause incompatibility issues.)
Draw HP, SP, & EXP as Percents - SephirothSpawn (You can add it whenever you want. Might cause problems with menus and CMS-es.)
Save File Slots - Polraudio (If you want that, go on.)
Fishing Script - ShadowClan Technologies (I suppose this would make a nice minigame. You can add it later.)
Cheats Input Screen - BudsieBuds (Add it afterwards if you want that feature.)
- Scene_Equip - NAMKCOR (Sure, a visual add-on is always good. Too bad that most CMS-es are incompatible. Actually StromTronics v5.0b is...)
Mining Script - ShadowClan Technologies (Would make a nice minigame.)
Weather Script - ccoa (Adds some nice effects and atmosphere. You can always add it if you want, you will only have to do minor edits to make it work.)
Elemental Attack Accessories - Leon (You can add it anytime. It can be pretty useful for custom equipment systems, but does it work with them?)
Attack Without Weapon - Sephirothtds (Do you need that? You can add it anytime.)
Map Stats and Info System - Dubealex (Nice visual enhancement if you need it. Could lead to inconsistency, I mean who needs i.e. a gold display on the map if it can be seen via on button press in the menu?)
Text_Input - cybersam (Need that?)
Information Database - Nakate (You can add it whenever you feel like it.)
Advanced Analyze System - Blizzard (One skill doesn't mean the world. If you have a need for it, you can add it whenever you want.)
Bestiary - Blizzard (Nice extra. Can be useful, but it's not really necessary.)
Chaos Project Debug System - Blizzard (Can come very in handy during debug. Otherwise I'd say you don't need it.)
Dynamic Day and Night System - Blizzard (Need it?)
DREAM for Music Files - Blizzard (Encrypts your music, can be used just before the release of your game. I suggest, you use it only if you don't want anybody to steal your music.)
DREAM for Save Files - Blizzard (Encrypts save files, use it if you want prevent people from hacking their savegames. Can be added anytime, but will render old savegames unusable.)
Blizz-ABSEAL - Blizzard (You can add it anytime. Use either that one or Zeriab's. I have seen all EALs so far and ours are the most powerful ones. We're waiting for Fantasist to test them to see the advantages and disadvantages. Can't wait for the result to see what I can make better in mine. ^_^)
Full Reflection System - Blizzard (One nice extra feature that can be added anytime. If I'm not wrong, this is the only Reflect that actually works.)
Those here are critical scripts that can cause MAJOR problems.
SDK and MACL - (Best you use them if you wanna use Seph's stuff. I suppose nothing of his stuff works without the SDK. =/)
Mouse Selectable Windows - SephirothSpawn (You have to keep in mind that this can cause serious problems with other scripts.)
Multiple Poison Effects - SephirothSpawn (Can mess up some battle related script and most probably you don't really need it. And as I know Seph, he didn't even try to make it compatible. =/)
Mode07 - mewsterus (HEAVY lag, don't touch it. I've seen a different and promising one on RPG RPG Revolution, but didn't have time to test it yet.)
Mouse Coordinates - Guedez/Tsunokiette (Same reason like Seph's mouse script.)
Swimming - ToriVerly (Just found that it's incompatible with Blizz-ABS. Might not need it after all anyway.)
Those script are more or less "useless" and maybe you shouldn't use them.
Blur Screenshot - SephirothSpawn (I'm not really getting the point of a blur screenshot.)
File Error Fix & Log - SephirothSpawn (You don't need it.)
File Use Log - SephirothSpawn (You don't need it.)
Tilemap (Basic) - SephirothSpawn (Lags more FROM WHAT I KNOW than the normal one, refrain from using it.)
Tilemap (Flash Data) - SephirothSpawn (Lags more FROM WHAT I KNOW than the normal one, refrain from using it.)
Tilemap (Extra Autotiles) - SephirothSpawn (Lags more FROM WHAT I KNOW than the normal one, refrain from using it.)
Extra Terrains - SephirothSpawn (You usually don't need more than the default).
Anti Lag Script - Near Fantastica (Refrain from using it. Other EAL scripts are shorter and better.)
Equipment Requirement System - NAMKCOR (Included in Tons of Add-ons.
)
Path Finding - Near Fantastica (You will usually never find yourself in a situation where this comes in handy. I did once, but it was a special system which I simply evented anyway.)
Personality Engine - Near Fantastica/AcedentProne (Same like pathfinder. Except you want to make a very realistic game. Keep in mind that this will require A LOT of work to set up for all NPCs.)
Main (Yeah, delete it. ... NO WAIT! Wrong section. This is required for your scripts to work. xD)
Those are more or less completely useless as they can be done with events without problems:
Banking System - SephirothSpawn (I really, really, REALLY never got the point of such a system in a non-MMORPG. Besides, it can be done with events so easily.)
Multiple BGMS - SephirothSpawn (Jesus Christ! Use an event...)
Quick Treasure Chest - SephirothSpawn (OMG, LOL! I can't believe he made a script for that!)
On Map Party Cycler - SephirothSpawn (1 common event with less commands that the script. Oh, and I've seen the code, he could have made it like MUCH shorter. =/ Hey, I even have it in my e-book.)
About those I have other complaints:
Multiple Languages - SephirothSpawn (Very missleading name.)
And I have absolutely no idea what those are supposed to do:
Multiple Damages - SephirothSpawn (Is that like dividing the damage onto several sprites when getting hit?)
Stat Bonus Base - SephirothSpawn (I have no idea what that is for, but it sounds to me as if you can make it with one event.)
Actor Stat Bonuses - SephirothSpawn (I'm not getting the point or the purpose. Is that something like the one above?)
Character Sprite Frame Change - SephirothSpawn (Uhm... doesn't that like happen automatically when you walk or something?)
Class Support - SephirothSpawn (Support for what?)
Damage Reductions - SephirothSpawn (I'm not getting the point or the purpose.)
Enemy Troops Extender - SephirothSpawn (Ok, nice, but I just don't get what that is supposed to add.)
Event Collision Detection - SephirothSpawn (I mean... WTF?! -_- RMXP has that included.)
Mapping Layers - SephirothSpawn (Another WTF?!)
Save Event Locations - SephirothSpawn (What's the purpose of this script? I bet it can be done with events easier.)
Skills Use Element Set - SephirothSpawn (Like I need Fire to use a skill? Huh?)
Sound Interaction System - SephirothSpawn (What's that for?)
Stat Skills - SephirothSpawn (I don't really get the purpose. Like requiring enough stats to use a skill? if yes, yeah this can be useful with my Stat Distro Sys.)
Unarmed Stats & Development - SephirothSpawn (I can't recognize the purpose from the name.)
Event Icon and Text Display - SephirothSpawn (Uhm... O_o What is that for?)
Perspective Sprites - SephirothSpawn (Not sure what that is supposed to be as I know the "limitations" of RMXP. Either that or it's more than 2000 lines long. Oh wait, we're talking about Seph here... 10000 lines.)
State Pops - SephirothSpawn (I don't know what that is supposed to do.)
BGL Skills - SephirothSpawn (Lol, what? How about avoiding the use of non-common acronyms in script names?)
Skill Mana System - SephirothSpawn (What's it supposed to do?)
Action Encounters - SephirothSpawn (What?)
Battle Simulator - SephirothSpawn (Is this an auto-battle script?)
WorldMap Teleporter - SephirothSpawn (What, a world map script or a script that allows teleporting script you around the world map?)
Battle Escaping - SephirothSpawn (WAIT, WHAT?!)
Battle Leaders - SephirothSpawn ( O_o )
Dynamic Defending - SephirothSpawn (Too common description, what does it do?)
Caldaron's Battle - Caldaron (Is that a CBS? If so, try it out, you might like it.)
Language - elbrunito (What?)
Scene_Map Addition - Tsunokiette (Lol, Tsuno! What does it add?)
One last note:
I suggest you avoid using Seph's scripts because of one simple reason: SDK. Many scripts are not compatible with SDK due to various problems, especially not SDK v2.x. You have to decide, use SDK and SDK scripts or leave it and be able to use a much wider range of scripts.
EDIT:I have 220kB of Scripts in my game without any comments. FTS (Fantasist) saw them... It's the best if he tells you what he saw. <_<;