Jason. He has pretty exotic, creative ways to kill a victim ou an enemy. There's also the fact that he never truly dies, and it takes lots of difficult work to kill him. So even though I like both, I gotta go with Jason Voorhees. :)
Jason will never stop until he kills u he's hard cord and leatherface i never seen his films and stuff so idk how strong he is.But anyways i bet jason will win.