Frankly they are both flawed systems. Ios is locked and custom crafted to Apple hardware and will only ever work on apple hardware, this is kinda Apple's thing, it's their development philosophy, it's in everything they do, control the user experience do the the last detail and ensure it's finely crafted and polished. I can't blame they create high quality products, but I disagree on a fundamental level to their approach, there can only ever be one user experience but people are infinitely variable and that one experience will never fit anyone perfectly.
Android on the other hand is NOT a locked system, and every single vendor has built a different android experience, heck individual Mod crafters create even more variety, all of them building goff each other borrowing ideas and improving the. The entire community benefits and new ways to use it appear and are iterated on much faster than apple could ever dream, there is a reason they are playing catch up and will likely forever be, thats why they are trying to break new ground with their silly watch. It's why their are always breaking new ground, they can't keep up once everyone else starts building on their ideas, thats also a major reason they are so aggressive with their patents and copyrights, they want to hold the market as long as possible. I've said it a few times in the past but I'll say it again here. "Apple does it first, Everyone else does it better"
But as I said Android is flawed, Java. It's a powerful versatile language but it's limited in the experience it can provide and limiting for developers as any tech they use has to tie into java. ONe of the big reason I'm looking forward to Ubuntu phones and tablets will be because there will FINALLY be a real os and expansive kernel to build on, true mobile computers can finally come to the market instead of the comparatively severely limited devices we have now.
As for NFC, it's gimmicky now, but the tech is sound and it WILL be important inside the decade. payment systems are about to change bigtime and apple is guessing right in that department. but payment systems are just a small part of what NFC can do, chips can be installed in door locks or really ANY device ever and your phone becomes an all access pass to everything thats actually secure unlike RF chips, set you phone down on your nightstand where you've taped a NFC card to the surface? stored instructions change it to a preset mode for the night, sets alarms, alerts you on battery level, brings up the next days calendar, and communicates with other devices over bluetooth to do similar tasks like set lighting levels ect. pick it up and it goes to "around the house mode, use it to lock you front door and it goes to "travel mode", set it down on your desk at work, "work mode" links with you computer, and logs in for you (2 factor auth?), syncs new information from your work computer ect. NFC can do a shit load of things, skys the limit there.
tap it to your media center and pass the track it playing along with the current position to transition flawlessly form headphones to living room speakers? heck I could sit here all day thinking of cool things.
Frankly nothing in the Iphone 6 is revolutionary or even impressive aside from the offering of a 126GB model which quite frankly is a bit much for even the guy who carries his media library around.