Red Hat vs. Microsoft... who would win the patent battle?

Four years ago, Red Hat got tired of SCO's FUD and told them to "Put up or shut up." Now Microsoft is smearing around the FUD with its patent claims. Should Szulik put on a fedora and "Prove It!" pin and pwn Redmond? Who do you think would win this match up?

http://www.informationweek.com/blog/main/archives/2007/10/time_to_break_...