Tommy's is one of my favorites. If you're looking for seafood, I would suggest the following:
-any of the oyster appetizer (Tommy, Rockefeller and/or Bienville).
-tomatoes Maison
-crabmeat au gratin
-fish Maison
-fish Capri
-shrimp linguini
Also, be sure and ask for a few extra bruschettas as well!