What seperates Kingdom Hearts from movie tie-in games is that it's fun to play.

I don't think it's really the be-all, end-all for Disney games though, since it never feels very Disney although the modeling is very well done. Sadly, however, the plot is a convoluted mess and the rest of the cast outside of the animated characters is the kind of thing that I think would make Walt spin if he could see it.

I'm not very hot on KH because, as well-done as the artwork on bringing Donald/Aladdin/etc into 3D is, it's just not the kind of project Walt would have wanted.