I think Jason would win due to being a lot stronger in comparison. Also being already dead limits ways Michael can temporary stop or even kill him. His body count is even today one of the highest yet. Despite it's just one guy doing all of that. Usually those numbers would be done by groups of monsters. Jason did held his own against a girl with telekinesis and Freddy. His knife is not only longer but sharper too. I do think Michael can put up a great fight. Ultimately I see Jason walking away as the winner.