Did Agents of S.H.I.E.L.D. pitch a winner in its first ever crossover episode? Who has the most punchable face on geek TV? And, most importantly, which Doctor ranks best in 50 years of Doctor Who?

Host Alison Southwick puts Fool analysts Tim Beyers and Nathan Alderman on the spot in the latest episode of Geekstock, The Motley Fool's new Web show, in which we introduce you to the big-money names behind your favorite movies, toys, video games, comics, and more. Please watch now and to get Tim and Nathan's answers, and then let us know your picks in the comments box below.