I actually like Penn & Teller. They are a very talented duo. They are gifted humorists and illusionists. They even have an entertaining show on the Showtime network. I may not always agree with them, especially when they deal with matters of religion, but they do have the courage to tackle some tough subjects. They are avowed atheists who crudely lampoon Christianity (and other religions). Here is a podcast by Penn Gillette about his encounter with a genuine believer.