Christianity: A loving father who is close to people and saves people. Jesus is the Son of God, God incarnate, and the Savior. Jesus died and resurrected to atone for the sins of the world.
Islam: Emphasis on neatness, uniformity, obedience, and reverence. Jesus is not God, and was not crucified.
Christianity: Justification by faith, salvation depends solely on faith in Jesus, not on behavior; people cannot be saved by themselves.
Islam: It depends on people's good deeds and obedience to the law. People should strive to follow the five pillars and be saved by merit.