This is tough as these were, by far, the best two dinners we had on our 9-day trip. I think it may be personal preference on the type of food you party likes.
Stating the obvious, if the majority of your group likes seafood, go to Coral Reef (the shrimp and mahi-mahi are MUST HAVES).
If you the majority likes steak, go to Le Cellier (ditto on the filet and the NY strip).
Also, as others said, Coral Reef also adds the benefit of the aquarium which is neat.
But if both have long waits, Coral Reef gets boring outside while Le Cellier offers the option of Kidcot down the path (and the CM's will get you when your table is ready).