There are many nice restaurants for an anniversary dinner. How much are you willing to spend and what kind of foods do you like? Napa Rose is pricey but a wonderful restaurant if you are a foodie and enjoy good wine. We like Granville's steakhouse, ds still talks about what a great steak he had there. Blue Bayou has a lot of character and can be quite romantic when seated by the water.
Have you checked out the menus at www dot dlresortinfo dot com. Look under GCH, DLH, PPH, DTD, DL or DCA menus. It'll give you an idea of the type of food each restaurnt serves and an idea of the price range.