2. "Christianity is no better than any other faith. All religions lead to God."
If you haven't heard this one a dozen times, you don't get out much. Sadly enough, the person making this claim is often himself a Christian (at least, in name).
The problems with this view are pretty straightforward. Christianity makes a series of claims about God and man: That Jesus of Nazareth was God Himself, and that he died and was resurrected -- all so that we might be free from our sins. Every other religion in the world denies each of these points. So, if Christianity is correct, then it speaks a vital truth to the world -- a truth that all other religions reject.