You know, I've tried em' all. Fuddruckers, Foster's, A & W's, Whitecastles, In n' Out, Vegas Burger (damn good, IMO), Golden West, Maui Grill (closest to Kahuna Burgers as we'll ever get), Slider's, Grubsteak, London beef burgers, Australian Mystery Macs (wow!), Argentine monster stackers (still have yet to finish one), Italian burger subs, even some choice confections from south of the border (McDonald's ain't got nothing on Saguallo sausage burgers from Tingambato, baby).
And still I say to you, the best all-time burgers I will ever know of are at Dairy Queen. No question.
- And I've had the Luthor. Mm'kay?
...May I just add though, BK stackers are indeed the bomb. I get those anytime I'm on the go and they never fail to hit the spot. ^_^