One view that I believe Cliffe attacked last year at UT was agnosticism. What is wrong with agnosticism? In some sense, it is perhaps the most correct view from a reasoning perspective. We perhaps can never know whether God exists, so agnosticism is a valid position to hold.
Even atheism is a valid position. Atheism is NOT saying that God does not exist. Atheism is a lack of belief in God. They are two different things. "Militant atheism", or "positive atheism", may be considered the assertion that God does not exist. But atheism is not this assertion. It is "a-theism", the lack of a belief in theism, the lack of belief in God.