My favorite burger is:
Have your butcher grind a whole brisket.
Make some UBER thin patties with it and add rub of choice. Montreal Steak, salt and pepper, whatever.
Grill them fuggers up and saute some onions to go with.
Throw onions on top and add a slice of swiss. Another patty, some more onion and a slice of swiss. Let it melt.
Put on bun. Add ketchup or mayo or mustard or WTF else you want. Toast the bun or don't.
Makes a wonderfully greasy mess of a burger.
Travis