Everyone loves Hellburger. Shake Shack draws in the lines. BGR is everywhere. But what are the darkhorse burgers in town? It could be a restaurant that isn't necessarily known for its burgers, or a chain that doesn't get quite as much publicity as the others. This week's Open Thread asks you, "What is D.C.'s Most Underrated Burger?" Let us know in the comments, or use the tipline. And get ready for much more burger coverage to come when Burger Week hits later this month.