The main World Club by Gate 40 is the biggest and best. Other 2 are located at opposite ends of the terminal are nice but smaller. For food, it depends on what floats your boat. Sora, also near Gate 40, serves decent authentic Japanese although a bit heavy on the sodium. If you don't mind exiting TSA and going back thru again, Dema, at the Westin inside the terminal serves a very nice menu. The Mediterranean Grill has decent food. For absolute indulgence, calories be dammed, try National Coney Island. Hot dogs smothered in meaty chili with lots of onions, mustard, and cheese sauce, mmm! Just don't tell your cardiologist.