Five Guys....
the company is originally from the DC area. i've never been to the original one, but have dined at some of the first generation expansion locations. Yummmmmmm....
BUT, the best cheeseburger, by far, bar none, are the cheeseburgers I get at the Flat Rock Grocery, which is near Lucky Lake Mine south of Petersburg, VA. OMG, those are sublime.
And the malteds at the drive-in in nearby McKenney, VA? Ridiculously good.
agnes!