If you are going for "evening formal" with your attire (darker, more traditional), I'd go with RC. If you are going for "daytime formal" (lighter colors, linen), then EG.
Yes, I know people are dressing up for dinner, an evening event. However, depending on when you sail and if you have first seating, it might very much still be daytime when you sit down to dine.
But I don't think you can go wrong with either place, regardless of your clothing choices. Animator's, however, would feel weird with everyone dressed all fancy, IMO.