I think Scarface is one of the best predators. He was left on a planet for 100 years planing and wanting revenge for what the Borga family did to him. He gets one chance to return to Earth to finish off the humans that have being using predator technology against them. He wipes out StoneHeart, Longspear and Swift knife even Xenomorphs to achevie his goal. I think Mr Black wouldn't stand a chance against this guy.