I've been playing Kingdom Hearts for about the past month. (Not because it's a long game, just because I'm slow at playing video games in general).
The animation is beautiful in some scenes, the music usually sets the mood very well, and the accuracy in converting most Disney characters to 3D impressed me. Voice acting added a lot too.
The texture on the boss in Haloween Town surprised me. I generally don't see texture that nice in my GCN games, which is a more powerful system.
I was raised on Disney cartoons and videos and I do enjoy most of the classic animated films they put out--- you know, the ones where they still had songs in them. <_<
Seeing the villains all come together, even though they really couldn't have in their intended worlds, was amazing. I can't think of any other instance where that's happened in any video games I own. And to do that with characters that are nostalgic to me... very fun.
I haven't ever been a fan of FF so those characters are nothing more to me than cool looking anime characters fleshed out in 3D.
They *do* look nice, though.
I thoroughly enjoy the battle system in this. Real time is what I prefer, definitely.
The AI for Donald and Goofy could use a bit of help, but they don't really get in the way. And occasionally Donald would heal Sora for me, which is a nice surprise when it happens. I just can't rely on Donald for that.
I'm used to fighting bosses with only a single character anyway (Legend of Zelda, Mario, MegaMan, etc), so it's all good.
Disney movies in general have the whole good vs evil plot, with good always winning. That's a feel good story there. And even though there are villains in the game, it's still lighthearted and fun throughout.