I might add Quinn and Rose, and Glenn Beck to the positive list.
If you have not listened to Tony Snow - put him on the postive side. He even freeps while his show is on.
When he's being funny, Beck is the funniest, even funnier than Rush.
I have never heard Hewitt, but have disagreement with him on stuff that I see posted on here. I can't stand Medved; for openers his voice irritates me so much it's hard to listen to what he's saying. Right after Rush (who is The Master and way above the others mentioned here) I put Jim Quinn. I know not everyone has heard him which is difficult for me to understand why he is only regionally syndicated. (Because his previous "bad boy" reputation still precedes him?) Glenn Beck is fine sometimes, sometimes not, but as you said should be added to the positive list.
Laura Ingraham too!
I also like Neal Boortz, and listen to him, when I can, on an Internet feed. He's not on here in KC.
AND
Nah Nah Nah Nah Nah Nah!
WE GOT JERRY AGAR!!!!
Mark