Of the ones I have tried.
1. California Grill
2. Wolfgang Pucks (When they first opened they were great, like using real crab in the california rolls etc, but now I would compare them to a decent place here in Jax)
3. Matasuma Lounge (in the Japanese pavillion) not that great, but if nice place to relax and get a sushi fix.
I keep on forgetting about Kimono's but it is on my to do list. Also there is a Benihana's in the Hilton at Downtown Disney.