Christianity is the only faith in the world that offers the forgiveness of sins here and now at the cost, not of the worshipper, but of its founder.
It is the only faith in the world that offers a direct relationship with the founder of the faith.
It is the only faith in the world that offers eternal life as a free gift here on earth to start the believer off on his heavenly pilgrimage, rather than as a goal at the end of his life.
All other faiths allow or encourage you to bring something to God for acceptance by Him. Christianity allows you to bring nothing but your sin.
All other faiths are based on the principle of man seeking after God but Christianity is essentially God seeking after man.
Source: The Herald of Hope