Eh, I don't mind any of those guys personally, but the fact that they ALL are PRIME TIME "news" programming (aside from the funnies) is pretty much to the detriment of having a truly informed populous. Guys like O'Reilly and Olbermann, who just gas off of whatever lands closest to the "party line" at the moment don't bother me, and I've been entertained by both in the past, but the really belong on day-time TV. Or else AM radio.
These people are not journalists. Sure, you might be able to drum up some instances where some of them have done *real* journalism, but most of them just spin whatever's on the front page of the New York Times... so no respect there from me.
I do not like Glenn Beck, John Stewart, or Bill Maher. Beck is a nutcase. Stewart isn't funny. Neither is Maher, but Maher is obnoxious. Stewart, to me, is like Maher lite.
Love Colbert, though.