Popeyes and Wendy's easily. I guess McDonald's third because they're everywhere, so rather than starve to death outside a Taco Bell, I'll just go to the McD's across the street.
I'm surprised there is a lot of Wendys love, nobody ever really talks about them. Best national fast food burger IMO.
Never been to Panda Express if I want chinese food I go to the mom and pop. Is it actually good? How are the portions and prices?
Of those, I'd choose Popeyes for chicken, Burger King for burgers, and Panda Express for ethnic variety.
Mickey D's simply for the filet-o-fish. Arby's for the fries. I want to say Chick-fil-A for the last spot, but I got the look of death when a waffle fry was found underneath the driver seat after swearing that I wouldn't eat there again. So, Popeye's it is.