Here in Utah, there are these greek burger chains all owned by the same extended family (supposedly). There's Astro Burger, Apollo Burger, Olympus Burger, probably more that I am spacing on but I used to love me some Olympus Burger, the double bacon cheeseburger combo to be exact. Their fries are the bomb! Nationwide chains, I would say BK had good beefy burgers and Sonic had suprizingly good burgers.