Vote! Who Has Better Hair, Anderson Cooper or Mario Lopez?

It's A.C. Slater vs. the AC360 host in a best hair contest!

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On his CNN show, "Anderson Cooper 360," Cooper found out he came in second to Conan O'Brien in a "Best Head of Hair on TV" poll - and then quipped that he at least beat "Extra's" own Mario Lopez, along with model Fabio and actor Ashton Kutcher.

Watch "The RidicuList" clip from "AC360"!

"Extra" wants to know...