for now, i will hold my personal beliefs, and just state a few things i've heard from people over the years (which tend more towards the 'fact' end of the spectrum). maybe later i'll put some of my opinions out... we'll see.
chris brings up the question "is there a God?"
one person will say, with absolute certainty and conviction "of course, i believe there is because of ..." i've talked with him, i've seen miracles, i've been raised that way, i've concluded by the evidence of something or other, or any other number of arguements.
another will say, and fully believe there to be no other option "there cannot be a God because ..." how would he let evil exist, we have free choice so there is no one controlling us, God is a made-up concept just to make people feel good about themselves, among other things.
in reality, there will be no one answer or arguement that will suddenly "convert" all people on one side to the other... and even so, they aren't even really sides, but more of an idea, where there are many people of varying degrees inbetween (there might be a god, there was a god at one point), but not even a scale (since some believe in many gods).
and the reason there are (and always will be) people on both sides is assumptions. take almost anything of a similar debate...
god or no god? any given holy book claims to be divinly writen (in some way or another), but you have to assume this fact to be true to say there is a god, or assume the books to be written scams (or similar) to say there is no god.
evolution or creation? you have to assume there wasn't creation initially, and then evolution that brought us to this point. or even if you say that's a possibility... you will either assume that similarities between species today are a result of a common ancestor, or they are the result of a common designer.
one religion vs another? assuming one to be true often (though not always) concludes others to be false.
it all depends on your starting point, as to where you end up. you can't, for instance, say "that whole bible thing, with jesus performing miracles, and claiming to be the son of god... that just can't be, because miracles don't still happen today", and then conclude that christianity is the right way to go. or in another light, you can't say "for such and such reasons, i believe the earth is only a few thousand years old, but i agree with darwin". if you don't believe what is written about jesus, you will be an athiest, a jew, or from any other number of religions that may or may not have any belief about jesus, and if they do, it's just that he was a good person. if you believe the earth is young, and created by a creator, then you can't agree with darwin and his theory of evolution (at least not fully, to the extent that it takes millions and billions of years to evolve).
on most of the things i've mentioned, i'll admit i have (or have at least heard) arguements for both sides. i also have my beliefs on what's true. and while some things i believe to be absolutely true and it'll be a long shot to ever change my mind, there are other things i believe that i will openly admit are not set in stone, and possibly never will be, because there are some details that, regardless of what opinion i could have on them, it wouldn't really affect my core beliefs.
--jason... done my rambling for today... looking forward to all that'll be up on this thread by tomorrow, and will likely have much more to say within a few days.