Take two: Do all Religions Ultimately Say The Same Thing?

Is it possible that all major religions (Buddhism, Hinduism, Islam, Christianity, etc.) are ultimately saying the same thing? If this is the case, then why make such a big deal out of Christianity?

Often we hear it asked in this manner, "Why make such a big issue about Jesus Christ and Christianity? All religions ultimately teach the same thing. Was not Jesus basically saying the same thing as Buddha, Confucius, Mohammed, and the other founders of great religions? They all teach that God is love, we are to love our fellow man, and that we should give of ourselves for others, do they not? If this is the case, then why single out Christianity for special attention?"