Richard Dawkins and Alister McGrath

One third of the way through, Dawkins makes this apologist for Christianity defend Christianity instead of some vague deism.

George Carlin - Carlin on Campus

Bill Maher on religion

Dawkins vs. O'Reilly

When Stalin is brought up, it should be automatically pointed out that Stalin spent time in a seminary.

Hitchens at Politics and Prose Bookstore

Hitchens is at his most charming for the generally positive crowd; telling the Buddhist and the Hot Dog vendor joke and the Laura Bush ultimatum with aplomb.