Waffle House...period. Don't listen to anyone else.

Get on the internet, and figure out which airport hotel shuttles get you close to any of the 3 Virginia Avenue WaHo's.

Scattered, Smothered, (and you're) Covered.

Seriously, though, they do have the best waffle around, just make sure they don't make it too thick, and make sure they cook it well enough. Too doughy, and it can give you a stomach ache.