Inspired by this question: http://christianity.stackexchange.com/questions/3937/how-do-christians-explain-to-commonalities-between-their-religion-other-major-fa
What is _fundamentally_ unique about Christianity? Obviously there are different stories, texts, and traditions associated with Christianity than with other religions. But if we cut away all the fluff from all the world religions... Is there anything that stands out as unique about the core of Christianity?