Let me see...
In descending order on each category:
Burgers: Culver's, Five Guys, BK, Wendy's.
Chicken: Popeye's, KFC, McDonald's for their nuggets once in a while.
Delivery Pizza: Flyer's (local chain, awesome when you can afford it), Papa John's/Pizza Hut/Domino's are kinda interchangeable. Occasionally Little Caesar's when I'm on the cheap
Mexican: Taco Bell is really the only option for drive-thru, but Los Guachos when I'm really in the mood for traditional.
Donuts: Dunkin, Krispie Kreme, Tim Horton's. But if I want a REAL donut, Honey Dip!
Surprisingly, I like Fazoli's a lot for a quick meal. Decent Italian for the price.
Yeah, I'm fat.