I've noticed that somehow sexism was brought up, so I won't be taking the side of the anti-Christians in this debate.
Instead, I'll take this opportunity to say that Philosophy is the only means of discussing God. Now, through logical argument we are able to find that Christianity is not the best explanation of God for it does not provide credible evidence for its claims about God, Jesus, etc. If Christianity were merely a religion about philosophy and not one based on "facts", it would be a better proponent for God.
As I stated in the beginning, though, I will not join in on the Christianity bashing because it seems that all you people are interested in is somehow pushing your own ideology along with the "disproving" or Christianity. It's annoying and takes away the whole point of the debate on God.
God is a part of Philosophy. To think about God, you must think beyond physical evidence and think towards reasoning. Physical evidence is good for understanding the world you live in, but if you wish to understand God you must first realize that God is not of the Universe you live in. God is something much more (this coming from the commonly accepted form of God; I'm not here to discuss those who worship golf clubs and such).
Does God exist? That is an impossible question to answer. Can God exist? As a natural being, it can not. God is a super natural being, and this is what's commonly accepted. The idea is that a super natural being CAN NOT exist, but it does for it bends the very laws of nature. Now, these laws of nature are to our understanding. We, though, do not understand the Universe enough to decide what are the ultimate laws of nature. How far nature can go. What is outside our Universe? Is there anything at all?
Is it possible that God is merely the missing piece to the Universal puzzle? Maybe what we find to be the intelligent or ultimate creator is a massive formation of energy that keeps us going. Is it God? Maybe we find that the formation that we see around us is merely conjured by a field of energy in an empty space and all of our "independent" thoughts are just part of a pattern formed by this random conjuration. Is this field of energy God? Maybe the Universe is God; for it is what creates everything we see. We can accept that w/e happens to us is because of the Universe. Maybe we are God. We know that w/e we see is there. We create the images. It's very possible that God doesn't have to be a single thinking being, but a being made up of many (our Nervous System and such). Maybe what we sense is our power over the Universe. Maybe if we could no longer sense it, it will no longer exist.
The Philosophy on God can go on forever with countless theories (mainly made up out of the blue, I'll admit) but in this case, God can not be debated with physical evidence, for the idea of God itself has surpassed physical understanding.