At dinner time you have six solid options:
For a fun night out cabaret style, Le Ti. Ask for a table by the DJ; try to go on Tuesdays or over the weekend where you will have some nice shows. The Cote the Bouef is as good, as meat can get anywhere, it is a must.
For a more glamorous place with a great decor, where the food is also good (more on the gourmet side, with plenty of Grand Crus to choose) Eden Rock, ask for a table overlooking the water where you can see the fishes thru the lights. Now they have a new menu by Jean Georges, they still have the fabulous Sole Maunier but they also have pizzas at the sand bar during the day. (Try the chocolate ice cream at any time)
Isola, at this point is probably the best restaurant on the island, the scampi’s are really good and so are all the pastas, (don’t miss the one with Bottarga) the Burratta when they have it, they also have an excellent wine list (especially Italians) and great service. As well on the Italian restaurants Pacri deserves a mention, (they move to at new location at the Mannapany cottage will have to see if we like this location, I doubt it).
Last but not least the new Bagatelle, yes same as New York just open ready for the 2012 new years, great for a fun nice out with great atmosphere with yacht and people watching, and the food is not bad either. After bagatelle you can walk to the nicest disco le yacht club or for a bit quitter but with a great décor and view the new Voyageur bar is really nice. Last but not least Bonito has now established well on the island, and is a very reliable option with good food, great services and nice décor.
Unfortunately one of our all time favorites la Marine has now close, will miss those Mussels and the Sole…