Andrew Zak Williams interviews atheists about their non-belief in God. My favorite line is from biologist P Z Meyer. It's more of a statement about religion than about God but it reflects my opinion.
... The whole business of religion is clownshoes freakin' moonshine, hallowed by nothing but unthinking tradition, fear and superstitious behaviour, and an establishment of con artists who have dedicated their lives to propping up a sense of self-importance by claiming to talk to an invisible big kahuna.