Hunter, he can see through walls and he has the speed of sonic and flash when he jumps, and his specialty is to sneak attack people and when he pounces on Michael that's it, he won't get off. Michael may or may not resurrect he's dead now so I don't know the Hunter would still win.
I've played Left 4 Dead many times and Hunter was pretty difficult but I've met up with Michael in real life and he's a difficult target, so... Michael, he's a talented killer and the Hunter is 'take-downable'
I'm gonna say Michael. Don't get me wrong, I like the hunters and all but...they're still mortal! Michael could fight him off and then just stab him to death. .....then Michael would be infected....and...oh god... D8
Tough decision.... The Hunter would freakin tackle him and would be slashing everywhere... But... Since Myers has superhuman strength... He would just immediately and repeatingly stab the hunter multiple times.