Real or not, Jesus is the most influencial Human in history! If you deny that you are lying to yourself-

[Veknoid_Outcast]

Jesus is a really good choice, but Muhammad might edge him out slightly, if only because of his impact on military and political history in addition to religious history.

P.S. The "Islam God" is the God of Abraham, meaning he/she/it is shared among all Abrahamic religions, i.e., Judaism and Christianity.