the problem is there are levels to fast food. I see some suggestions that would be casual dining restaurants and then there are sorta shiek places like 5 guys or buffalo wild wings. What I consider fast food that has burgers around me is wendys, mcdonalds, burger king, arbys, culvers, and a&w. Of those I would consider wendys the clear winner. Culvers is a close second and three decades or more ago burger king would be in the running. I often forget how decent a wendys single is till they have a deal and I get one. One thing though is since the big inflation hit I have only picked up fast food single digit amount of times and usually because I just have to (last time was related to my wife being sent to the er from the doctors office during a procedure.)