If any of you come to America and have a hankering for a burger, do yourself a favor and dont go to any chain, any local burger joint will outdo those easily. Yes even In and Out, though feel free to get a Tshirt.
Fast food burgers are like fast food coffee, sure it works to get you a fix, but overall you are just cheating yourself on the experience.
Example: Hodad's in California

Now THATs a burger!