Cox Bros was bought by the guy who owned Smith's Cafe, Grizzlies, etc. He is very good at starting restaurants then selling them for profit. It was never really high on my list.
I like Little Apple, but you've got to pay. Great steaks and really the only Prime in town. 30 minute drive to Puffies for another good steak place.
I like Kites, Willies, and So Long; good mix of different bar foods.
Grizzlies is a nice place with a "small town cafe" feel.
Famous Daves is the best chain place IMO. Old Chicago is alright.
Smith's and Early Edition both have great breakfast.
I'll have to try 4 Olives, never been there yet.