I don't really argue about religion anymore because it

a) Pisses people off
b) You find religious people don't need facts or evidence, it's faith based. It's like you're trying to argue a point in C++ while they're using PASCAL. I know it's not a good analogy but you get the point.

And I will say this and not much more on the subject. Science has theories on how we evolved. Religion says that we cannot understand such things, so we must attribute it to a higher creator. Which is effectivelly reiteration, because you can inquire indefinitely as to who created that, then who created that, then who created that, etc...

You'd be best not to openly argue about religion with someone even if they start the argument. Just usually be the bigger person and let them "know" they are right. Because this isn't the Middle East, and we can agree to disagree without killing one another. The only sad part is that as much as it shouldn't, religion plays an active role in our government (stem cell, abortion, etc...).