California Grill all the way, or if you want to head over to AKL, Jiko or BOMA are also excellent. In park, BOG dinner at MK and I also like Hollywood Brown Derby at HS for the atmosphere.
California Grill first
BoG nobody knows as it will be a new Signature restaurant by then
Le Cellier - dark, crowded, noisy. the food was ok, but not special
If you are adventurous, I would consider Jiko if you can't get California Grill.