This has come up as a (joking) question among friends of mine. Also, some of the identities of the people in question seem to be … in flux lately. 🙂 So just to clear things up, or possibly confuse things more:
Matt Cutts manages an anti-webspam group at Google. He’s also an A-list blogger, a speaker-to-webmasters/SEOs, and goes to a lot of conferences.
Jeremy Zawodny (Yahoo!) is an A-list blogger, a speaker-to-webmasters/SEOs, and goes to a lot of conferences.
I (Tim Converse) manage an anti-webspam group at Yahoo! Search.
There – now you have all the information you need to decide this difficult and important question for yourself. 🙂