Yeah these are called Jews and Muslims, not Christians. The core basis of Christianity is the acceptance of Jesus as God's son and the saviour of mankind.
To answer the question, if we accept the situation as you've stated it (ie: that the powers you've attributed to them both are wholly true in this situation) then hands down Jesus wins, as He literally has every power of God, and regardless I don't think God would allow Him to die at the hands of Superman unless in some twisted way he represents mainstream sinful humanity, which would be odd considering he's not human or evil.


















