Buffalo Joes in Evanston IL (near Northwestern U). I still can't find anything as good as BJ since my years there. It's extra spicy, extra "sour" that give it a real kick. Plus , it's not overly fried, not breaded (a big no-no IMHO). And they're great even the day after.
http://www.judysbook.com/cities/evan...falo_Joe_s.htm