Q: Mine would have to be the "spicy chicken sandwich" from Wendy's, it is so so so so so so good.
A: The cheeseburger from Burgerville (it's a little chain in the Pacific Northwest -- Washington, Oregon). They have some sort of sauce they put on those things, it's like crack! Second runner up are the greasy little burgers from Dicks Drive In (also a little chain, found only in Seattle).