I've always found Checkers to be the home of the stomach punching burgers.
I ate a Big Buford once.
Only once.
I miss the early days of Checkers, when they had the 1/4 lb Champ burger for 99 cents, and their IMO, much better version of the Big Mac - the Double Deville (or something like that).
Now it's the 99 cent "Checkerburger" rather than the Champ, which of course isn't 1/4 lb, it's tiny, and crummy - doesn't come with lettuce & tomato like the Champ used to either. I think you can still get the Champ, costs much more now of course, and last time I tried one (several years ago) it wasn't any good. Barely edible in fact.
All the Checkers locations seem to be dirty, the staff outright surly and I had them try to short change me a couple times. Haven't been to one for a couple years now and no plans to ever go back again.