1) Boring. All you do it point, click and kill. Then it gets insanely hard as you need to run away all the time because you die after 2 hits or you need to grind for hours so that you are strong enough to die after 3 hits.
2) Sure, it's nice, but they all seem to be lacking something. It's not related to the game mechanics, but rather to the games themselves. i.e. in Fable when you were evil, you, as player, felt sorry for those virtual people suffering. In KoToR on the other side (which is a game of type 6!) it was fun to be evil.
3) Nice to play, but way too repetetive. After a few hours of playing you've seen it all. The rest is all a repetition of a repetition of repetition of a repetition.
4) People trying too hard to make type 3 games. They give you a giant world, 60-100 and more hours to play and load of other stuff that is a copy of a repetition of a repetition of a repetition of a repetition.
5) Those mostly have the best stories. Sure, they may limit the player in freedom, but you play them to see how the story ends. Of course, if the story is lame and/or the characters are shallow without any depth (*cough* ... Seymour from FFX... *cough*), not even an awesome battle system can't make it up. The game is simply boring, you don't care about the characters and you don't care to play.
6) Depends. The only games I've played here are KoToR and KoToR 2. The games were good, but I don't think that had much to do with the mechanics, but with the gameplay and atmosphere.
There, my 2 cents.