Quote Originally Posted by CountArach View Post
Actually you summarised it perfectly in the first sentence fragment. There are so many gods that it is impossible to know which one is correct, if any truly are at all. The same reason that you don't believe in the other gods is the same reason that they do not accept yours.
God told me I'm right.

But for a more useable argument here, Christianity has a major difference from (almost?) all other religions. Whereas Judaism/Islam etc are all about being a good person and living by various laws to get to Heaven, Christianity is about admitting your failure in this respect, and that another guy paid for it.