Favorite fast food?

Arby's. There is no doubt.

Taco Bell

In-n-Out.

 
Sonic for their drinks. Panda Express for a quick chiney food fix

I usually go to Subway.

My favorite hamburger is the Big Mac, so I guess that means it's McDonalds by association.

Ergh, so hard to choose... 
In-n-Out 
Five Guys (kind of fast food?) 
Chick-fil-A 

It's all good, don't make me choose! Here's two of my favorites that aren't standard menu items:
 
Popeye's Chicken: french fries dipped into the mashed potatoes
McDonald's: Southern Chicken Biscuit, add bacon, and dump one packet of honey and one packet of hot mustard on it. It's fucking crazy. 
 
Edit: I've been asked what the burger in my profile pic is. That there is the Tom Sellick's Mustache from Lunchbox Laboratory, in the (not so) lovely Ballard neighborhood of Seattle, WA. It costs $15 and comes with no sides or drinks.

Any place that serves fish 'n' chips ;)

Burger King presently.

Hardee's/Carl's Jr.

Fuck Fast Food. Food should take over an hour to make and be done in a clean kitchen. 
 
Edit: I do like the Whopper though.

Church's Chicken, I love me some fried chicken.

The Mushroom Swiss Burger. Ah, yeah.

 
Burger King.Everyone who says the opposite is an idiot.

Mcdonalds, fish burger and fries. Damn.

@HitmanAgent47 said:

"

Mcdonalds, fish burger and fries. Damn.

"

Scabs and excess mucus -- hold the ketchup. Pardon? Oh, no salt thanks.

Chick-Fil-A. 
 
Not only is their food delicious, but they have some of the best service I've ever had, restaurant or otherwise. Plus, the one nearest to my house is SUPER fast. I love that place. Fuck it, I'm going there right now for breakfast. 
 
Five Guys is damn amazing too, but there's only like 5 of them in Houston, and all sort of far from me. Worth the drive, though.

Taco Bell or Popeyes.

Zaxby's

Carl's Jr.  can do no wrong.

Checkers/Rallys

Five Guys Burger and Fries... 
 
or  
 
Pop-Eye's

Does Starbucks count? I love Frappuccino's. 
Oh and Krispy Kremes is like sex in my mouth; not that I'd know what that feels like.

Nothing beats McDonald's breakfast.
 
Nothing.

Wendy's Spicy Chicken Sandwich with Chili instead of Fries. 

Probably BK.

Sober: Potbelly's, Quizno's, Subway. 
 
Drunk: Taco Bell.

taco bell, best food  for the price.

Chick 'fil A. Easiest question ever.

In-N-Out and Jack in the Box. 

It's got to either be five guys, or whataburger.  I can't decide.  we have some awesome mom and pop burger joints around here too.

Subway, if you consider that fast food.

Falafel is, basically, the only think I can eat in any fast food joint, unless the salads don't have cheese.