Visionaries: J.J. Abrams and Joss Whedon wear comfortable shoes. These genre-crossing pop auteurs have among the biggest followings in the Comic-Con crowd -- and they deserve them with girl-power friendly series like "Lost" and "Buffy the Vampire Slayer" to their respective credits. The panel they share is bound to be one of the biggest events this year, so prepare for long lines.

-- Mikey O'Connell, Zap2it