Jack White, simply because he affords the chance to hang out with legendary rock artists and blues musicians. Also, he's holding a mandolin in that picture.
Wow, what a shit thread. Expected from some CoB faggot. Really, do you have to remind us that Jack Black is from Tenacious D? Who the fuck do you think we are? Newfags?
Here is my answer. Both of them suck, but not as much as Children of Scrotum.