"I used to enjoy Doonesbury, but he's gotten progressively more bitter and just mean."
The very early Doonesbury was downright hilarious, and in fact very un-PC, as Trudeau actually made fun of liberals (especially their naivete and earnestness). Later on, as you said, he grew more cynical and condemning of anyone conservative. I can't even read him now.
My favorite character was Uncle Duke, but you know, even when he's featured, it's just an anti-Iraq-war screed now.
I used to read his stuff last on the comics page because it was almost always funny. Now I hardly read it at all.