Christianity is based on a myth! Buddhism is based in Compassion!
Christianity is monotheistic and believes the world is 6000yrs old! Buddhism believes all of nature is god and time is infinite and has no ending and no beginning!
Christianity believes sin is ok as long as you repent and ask Jesus into your heart!
Buddhism believes in Karma, rewarded for good karma punished for bad!
Etc.etc. the differences are infinite! however Christianity does use some Buddhist influence but thats about it! The Christianity of today is almost the the exact opposite of Buddhism