Naw, funny's funny. I can listen to XM Comedy and just about kill myself laughing.
The Tina Fey Palin stuff (what I saw on YouTube) was great!. OTOH, Fey's '30 Rock' part is a waste of time.
Lewis Black is hilarious.
Once in a long while Will Ferrell does something that will actually make me laugh but most of his stuff sucks. It's something in his timing and facial expressions.
85% of George Carlin's stuff was hilarious, but some of it just wasn't really funny; it could best be described as disturbing. IMHO, Richard Pryor was better overall than Carlin.
Jim Gaffigan makes me hurt myself laughing. Same with Kathleen Madigan and quite a few others.
Adam Sandler; well, let's just say I can't understand his popularity among those older than 10.
Richard Lewis has a one track comedy routine about being an insecure Jew, that's all he ever does and it's boring.
The Daily Show is funny, even if I don't agree with John Stewart all the time. Ditto the Colbert Report. I bought Steven Colbert's book and laughed my azz off.