My vote would be for Narcoosee's. Both my wife and I really enjoy this place much more. CG has very good food and the view for the MK fireworks is great, but we've just found that Narcoosee's slightly more simple approach to the cuisine wins us over. You can still see the fireworks (take your wine outside and get a nice spot) as well as the water parade.
It can get loud here, that is the only drawback we've found.
Our experience at CG was nice, but of the two, Narcoosee's is on our "must do" list.
HTH,
Andrew