Friend of O.O. Zee Burns wrote this fun piece on Metacritic which ranks vampire shows and offers some commentary. One photo, the Count, indicates that Sesame Street isn't in the running despite the number-obsessed little bloodsucker.
Despite this egregious oversight, this is quite an enjoyable feature. Personally, number four, Angel, is my number one, and number three, True Blood, would come next (though I've only seen season one).