...have an answer. I don't have a favorite hamburger. There are some I like. And there are some I love. But if I was picking one burger to eat as my last meal on earth - they'd have to delay my earthly departure while I tried to decide which burger that is.
I can pick a burger I'll really enjoy off of any of the fast food menus you mentioned in your original. There might be some I'd pick over others - but I don't think I can say there is one burger that rules them all.