We have eaten at pretty much all restaurants named thus far: Artist Pointe, Cali Grill, Jiko, Morimotos, Boat House...
We don't love the Cali Grill (and same comments for Narcoossee's) I find the atmosphere to be a bit pretentious, the food just ok for the price and the view is overrated. I would much rather watch the fireworks from the Poly beach (if not at the MK).
I will second (or third) the votes for taking the boat to DS and going to Morimotos. The ribs are unbelievable. Artiste Point and Jiko (or Sanaa) are also excellent choices.