Christopher Hitchens, author of the new book God Is Not Great: How Religion Poisons Everything, debates Sean Hannity on the existence of God.
Like with Rocky Anderson, Hannity gets schooled. Hitchens recently debated Rev. Al Sharpton, too.
For another enjoyable debate between a believer and non-believer, see Richard Dawkins vs. Stephen Colbert. For the sake of posterity, I've posted it here as well.