The Onion here in Spokane offers a wonderful line of burgers.
But one place I've never had one from and would love to is In and Out. I wish they were closer because I've heard nothing but good things about them.
Of course they aren't a gourmet place like many talked about here.
We have tried Fat Burgers and Five Guys all because of members here mentioning them. We were underwhelmed with both. They have lots of wonderful condiments but burger wise I wasn't to impressed.
Of course my wife eats burgers and steaks for the condiments where I eat them for the taste of the sandwich or steak. lol We make good burgers here at home but she has to have pickles, onions, lettuce, miracle whip or Mayo, and anything else handy.
Me I like plain old burgers with perhaps a bit of onion and some mustard.