5 Guys trounces S&S. I've also enjoyed In & Out, but their burgers seem really thin and less filling compared to what you get at 5 Guys, plus 5 Guys' fries pretty much beats out everyone else, plus you only need a singe regular order of fries to feed like 3 people sine they basically fill the bag with them. Be warned: 5 Guys in Chicago is pretty pricey. I don't know why the prices jumped here compared to where else I've been to them in the country, but the burgers that were around $3 are now around $5.