Amazing the different tastes. My wife and a son, who used to be a chef think that CK’s hamburgers are the best hamburges not just fast food burgers. I think that they are good.
We don’t care for In and Out, BK’s and Wendy’s.
McD’s plain cheese burgers with grilled onions is #2 for us.
I’ve always consider Hardees to be cardburgers.
My favorite burger is fresh shaped ground beef. That generally excludes all but local joints that make them that way. (Terry’s Turf Club near River Downs race Track and Amelia, Ohio is a good example)
If I had to pick a fast food burger, I’d go back to the early days at Wendy’s. They are now tiny caricatures of their old burgers, but the memory still lives.
Longhorn probably has the best burger on the chain market right now.