I've been obsessed with writer Christopher Hitchens for the past few months. He is an public intellectual and an outspoken "anti-theist." He wrote the book "God is Not Great: How Religion Poisons Everything" which I have actually not read yet. The book has caused controversy and Christopher went around the country debating many theologians from the major religions over whether God was great. The debates are very exiting. In my opinion Christopher articulates the best argument against religion that I've heard so far. He destroys every one he debates with logical arguments and he words them so good with a little pinch of humor that makes his lectures insanely interesting.
I think that he is a very bright voice for reason and if you're interested in the subject of religion you should definitely check him out.