I would argue Ted Rall is not a "public figure." Certainly not on the par that Jerry Falwell was in the 1980's.
Not at the same level, but he is at least a limited purpose public figure re: Iraq and Islamic nations with his Stan Watch posts. He has no shot at getting out of the public figure part of the libel law, I would reckon, especially since he is regularly interviewed and published. Sorry, but that huge steaming editorial site he posts to will work against him mightily. And I'm sure Coulter will peruse his work and if she cannot do it herself, bring in counterclaimants to make his lawyer's life hell.
He is proving to be quite the dumbass. She gets notoriety. He looks like no friend to the First Amendment rock he hides himself under, and exposes himself to vitriol from his own side of the aisle. Meanwhile Ann also becomes an instant defender of the right to free speech.
You would loose !!!!!!!!!
Then you're very ignorant.