I think the battle system is more like KH than CC, which I personally prefer. KH's battle system felt faster paced, more engaging and visually was better than CC imo. The only reason it may resemble CC over KH is that the games is less cartoony and darker looking. But execs should realise that they're not the makers of a game. All they need to do is sign cheques and leave the creative side and decisions involving the direction of the game(including which platform to release it on) to Nomura and his team.

As for it being a PS3 exclusive I'm oretty sure Sony are happy about that. It may boost sales of the PS3 for a short time. I mean, after watching that trailer how can you not want to play it? If I never had a PS3 I would have bought one for this (which I actually did). I don't buy a lot of games and stuff, so when I do, price is not an option, especially for quality. Take a hint 360 owners :P