This debate will never actually come to an end unless and until all of one side stop debating.
People find their own God, be He real or not. I personally believe that the stories surrounding each religion are the same (much like Star Wars and Eragon are the same), and are derived from ancient practice... there's actually some solid arguments out there that every mainstream religion is derived from Paganism.
But there's no infallible argument against God. People tend to say "Either we got here due to God, or we got here by evolution," and then they start to attack evolution. But evolution has strong evidence for it. The reason that there's no infallible argument against God is that the Universe EXISTS, and that something beyond our understanding, God, may or may not have created it. So God might exist, and thus one has the right to believe in Him. Such a being would also be omnipotent, due to His having created the Universe - everything, as we know it. So it would only make sense, if one believes in God, to attribute all of these things - afterlife, justice, power - to Him.
So it's pointless to attack God by defending evolution - it's part of the Universe, and so he would have created it as well. It's important to note that most of the Bible is comparable to most of every other holy text, which has their roots in astrology (there are many, many incredible similarities - I won't elaborate on them unless I'm asked, but you can do the research yourself), so the Bible wouldn't work all that well as an argument against God by contradiction or anything else - it can't really be trusted if it's about the cosmos (or it might not - God could have put the other texts here to "test our faith". Or maybe the ancient Egyptians really were worshipping the Judeo-Christian God, and He put the stars as they are.)
So there remains the question that, if answered, would resolve the issue: could a Universe exist without being created by God?
One would say that an outside force had to have acted in order to do it. There's M Theory, where the Big Bang is caused by parallel universes colliding...but then where do the parallel universes come from? There's another theory where extradimensional beings create the Universe, but they had to come from somewhere/thing/one. One of the scientific theories is that the Big Bang is caused by the ridiculous amount of energy released if the entire Universe were a perfect vacuum (one cubic centimeter of absolutely nothing has enough energy that, if condensed into matter, could fill up all of the observable Universe).
I figure since the question of God is more-or-less a question of how the Universe came to be, I might throw in my two cents:
The Universe is expanding. We have strong evidence of this (blue-shift, celestial movement, etc.) This means that it must have at some point reached an absolutely non-contractable point, at which it started its expansion. This is why we have the Big Bang theory. Then we have gravity and entropy and things like that, which seem to be acting to bring everything back together to that point.
Then there's special relativity. If there's gravity, time passes slower. Imagine at the point at which the entire Universe, everything - infinity, coexisted. The amount of gravity would be infinite, since it is everything possible within the limits of the Universe. Time would have been nonexistent, if this were the case, according to special relativity. If the Universe does come back together due to gravity, then time would essentially come to an end. So time and the Universe are one and the same...time ends when the Universe does, and the same goes for its beginning.
Infinite matter - and hence, infinite gravity - could come from the infinite energy that would occur if the entire Universe were a perfect vacuum. So isn't it conceivable that the Universe created itself, and that time came with it, and that at the end of time, the Universe will be as it once was, and will start again? If the Universe is the only thing that ever unfolds, since time starts and ends when it does, wouldn't that negate the existence of anything BUT the Universe?
This is probably why religious folk attack science to defend religion...according to it, the universe is self-fulfilling (if the above explanation is correct). But then, perhaps God created the mechanisms of quantum physics. Maybe it's that absolutely nothing, the lack of a presence, is actually inconceivable and impossible for the Universe to maintain. Maybe.
