Burgers being the subject and trucking aside, I've tried them all. In and Out, Red Robin, Backyard Burgers, Rallyes, White Castle, Krystal, Carls Jr, Whataburger, Cook Out, Fuddruckers, 5 Guys, etc etc.
I can honestly say that bar none, the best burger I've ever devoured was at a McDonalds in Tokyo, Japan. Why? It was 100% Kobe beef. If you've never had one made from Kobe, you're missing out on a piece of heaven fellas. Problem was from 2009, up until 2014, it was banned from import here in the states. American Wagyu is a close second, but trying to find a genuine burger made from real 100% Japanese Kobe is next to impossible. Right now, the only place I know of that serves real Kobe burgers is The Old Homestead Restaurant, locations in NY, Atlantic City and Caesars, Las Vegas.
Once you have one, you'll know the hype isn't just hype. For everyday, Smash Burger is now my new favorite.