To believe in God, we need faith in something without basis, is like trying to solve a puzzle without having all the pieces and using an incomplete guide.
It's a blessing for some people and a curse to others, a choice betwwen a confortable ignorance (faith) or an existence without purpose (atheism). One way or another, the world would be better without this concept that in my opinion serves only to alienate people and results in flame wars with global proportions.
So, no God for me. IMHO, the man creates God in his own image and convenience and should stop doing that, for the sake of humanity. I apologize to those who have faith, but it is what I think of God.