Michael Myers from Halloween would have the precision and stalking abilities to take down Jason Voorhees and claim victory. Pazuzu from The Exorcist would outmatch Jason Voorhees with supernatural survival skills, as Jason's strength and ingenuity would be useless in a physical fight.
Simply put, Jason Voorhees wins because he can't be killed. Not even a rain of bullets or impalement can stop him. Michael might be one tough cookie, but (depending on canon) he's still mortal. Both are matched in physical strength, but when it comes to durability, Jason takes the win.
