I've been thinking about this a lot lately, especially after listening to Stefan. This is one of those few topics where I disagree with him. There is no way to either prove, or disprove, the existence of god. Though I will agree with those saying that it is a matter of definition and what one actually believes god(s) to be. Topics like this are fun to talk about, but have little actual bearing on the reality of life. We will either find out one day as a species, if we both live long enough and learn enough, or we will all find out when we die. That is assuming that we aren't just dead, in which case none of this matters regardless. So, I remain a strong skeptic. If I had to choose a god to worship, I'd personally choose Athena, goddess of wisdom. But, that doesn't mean I truly believe.
Human beings, as a species, require hope and some comforting beliefs in order to keep going. I would strongly argue that it is a matter of IQ and intelligence that determines just what form that takes, with the less intelligent going more towards religious beliefs and believing in that which they can't possibly prove or know. However, in topics that can't be proven or disproved, then it is merely a theory. It doesn't matter how much someone believes it to be true if they don't have any proof.
Finally, as Stefan has said before, I care more about the outcome of a belief than the belief itself. So, while I don't really agree with religion or the basis for it, this doesn't mean that I dislike all religions. Some religious groups do produce some rather good results, like here in the west with Christianity. People have become more secular and scientific thanks to the combination of Christianity and Philosophy. Hopefully someday we will know for certain the truth of this matter, but I think it shall always remain a mystery that tugs at the hearts, minds, and souls of the species.