A&W is cool. There's an original one up the road a piece from me (about 45 minutes). It is the old drive in type, with the girls on rollerskates and everything. Located in Madisonville, Tennessee, close to Knoxville.
Y'all don't have Taco Bell?
Not only am I in the US, I am also in the South. Most resturaunt chains are regional (except for the big boys like MickeyD's and such).
Zaxby's is great. "Buffalo wings, chicken fingers, and such." Choose your sauce... everything from Wimpy to Tongue-Torch to Nuclear.