Which pundits are the most popular?

Dan Amira in the New York Magazine has developed what he calls a "pseudoscientific" ranking of pundits. I'd object to giving a boost to pundits who hosted presidential debates. And using Google hits as a measure of popularity could just as easily be a measure of how unpopular the pundit is. For what it's worth, the top five are

Karl Rove
Rush Limbaugh
Jon Stewart
Bill O'Reilly
Chris Matthews