I've been trying to cut back on red meat, but when I do get a burger, I like it on the heftier side. Cooked medium rare (obviously), and topped with lettuce, tomato, carmelized onions, mushrooms, and a fried egg. Provolone, gruyere, or blue cheese, depending on my mood. No ketchup, mustard, pickles, or bacon for me. The only alcoholic beverage I'll drink with a burger is beer, either an amber ale or an IPA.
I've found both Shake Shack and Five Guys to be rather mediocre.