I only get to listen to Hawk and Stone on games broadcast by WGN, so it's not an everyday thing. I love the passion Hawk displays because as others have posted it mirrors my feelings. And the rapport between them has been better this year. They actually talk to one another during games...big improvement.
I listen to lots of games on XM radio. And Farmer and DJ are terrible. They try to be funny but it comes off as silly. Even my wife who's not a big fan commented about how silly those two sound.
I say fix the radio crew first. Use any changes on the radio as an audition for the inevitable successor to Hawk. We won't have him forever.