I gave it some thought, but I came to the conclution that it doesn't matter. If I chose to accept the Christian view, there is the Muslim Hell to worry about and the other way around. Or the underworld of the Northern Gods(Tor, Odin etc.), or the realm of Hades. Or the afterlife of another religious belief. There are so many of them that has risen and died down that the religious people of today are just as likely to be wrong as we are.
I've given a lot of thought to being wrong. Take consciousness for instance. when speaking of consciousness, it's like asking where did substance come from. it's a nonsense question, like asking when does infinity end?
So the standpoint I take on that is that I acknowledge Descartes' "I think therefore I am" statement derived from doubting everything and determining that the only thing he could say for sure is that he was thinking and in essence that proved that he at least "was". From this you can go wild in assuming things about the universe like a child.
But from that he build up his logic anew, saying that "god had to exist" because "something" was (I actually forget his reasoning to my dismay) but thats where we go our separate ways.
I doubt everything, but what I get from that is that regardless something exists which is fantastic in and of itself. when you get down to it, maybe the impossibility is that "nothing" exists. and that is truly mind-blowing.
I guess when thinking I might be wrong it doesn't phase me, because if "nothing" can't exist I'll always "be" and no-matter if I'm right somewhere along the line whether I'm right or wrong wont matter at all.
God is real. Why is he any less a guess than anything else? Because God is a nonsense answer, he explains nothing. Of course, he is a little more than everything to the faithful but that is equally nonsensical.