It wouldnt be a bad thing to have a listing of decent places on here, so when any of us are traveling, we look and see what is along our way.
So, that said, here are some good places for burgers...
Quad City area..
Hunters Club...Rock Island, IL they have long had a rep for good burgers
Pauper's Den...East Moline ( or is it Silvis ), IL.
Boozie's ...downtown Davenport, IA
Skello's ....Cambridge, IL
Cernos....Kewanee,IL ( the bar here is worth the visit, it was hand carved by Pabst, and there may only be 3 left )
The Barn...Atkinson, IL
TCs Point After....DeWitt, IA
Iowa City
Hamburg Inn #2 ....Iowa City, IA
Cedar Rapids, IA
Tic Toc....Cedar Rapids, IA
Oregon, IL
Jays Drive Inn...Oregon, IL
Peoria, IL area
Burger Barge....East Peoria, IL
Blue Moon....Batavia, IL ( Chicago suburb )
O'Briens Pub...Batavia, IL
Old Time Pub...Geneva, IL ( Chicago suburb )
Houlahans tavern....Waterman, IL
The Maid Rite restaurants are usually terrific, and the orignal old ones are great. In Cedar Falls, IA, its like going back in time.