When my momma was too busy handling stuff, pops would buy a double cheeseburger for me to bring for lunch. Good ole reliable. But other than that, Hardee's Super Star.
both the Guac Bacon and Banzai from Red Robin take first place, and a (Wisconsin) Culver's Deluxe Double takes 3rd
I love burgers and you know what's even better than a burger? A Wide burger. They are amazing and much better than tall burgers.