Ann is extremely good at verbal debate, and she has a hugh base of facts at her disposal.
I like Carlin, but he's a trained talking head and unlikely a match for Coulter.
I'll be shocked, however, if Carlin initiates any argument with Coulter.
correction: I like Carlin, but he's NOT a trained talking head and unlikely a match for Coulter.
You've got a good point. The usual MO is to do a hit and run when the other person isn't there to defend his/herself or their ideas. Direct confrontation is usually avoided--since its the quickest way to defeat their argument.