These would be very suitable, considering the many places there are:
Rapunzel's world (Interesting boss battle, don't you think? And another way to pull Kairi into memory with the romantic couple, like in Halloween Town in KH2)
Toy Story (Not sure how the trio would be toys when they're already normal beings, though.)
Snow White's (More than enough characters!)
Aurora's (Can you say ultimate confrontation against Maleficient?!)
