xD But fighting the Organization members is so hard! Haha, I managed to beat the Absent Silhouettes (the members from COM that're in the game) but I can't beat anyone in the Chamber of Reflection or...whatever it's called. :| And Terra takes me out in two hits, haha.
Also, without Disney characters, you'd have a Final Fantasy spin-off. There were be no Sora, Kairi, Riku, Organization XIII, Ansem or...any original characters, really. You'd be stuck with the core FF characters and going to FF worlds. And I honestly would never have gotten the game.
I only first played Kingdom Hearts for the Disney. I'd heard of the Final Fantasy series, but I'd never played one of the games. So when I rented a PS2 on week, I got hooked on KH because of the Disney (I've always loved it since I was little :B). And then KH was the only reason I got a PS2, which is now my favourite console. XD; So...I'm glad there's so much Disney. It wouldn't be an interesting game without it. :[