Cold War and Concrete Jungle bothered me with the whole "Dutch's brother knocks predators in hand-to-hand combat" thing. It should be pretty clear from PREDATOR that no matter how strong the guy is he won't stand a chance due to streng difference. I don't get why couldn't the writers just make the characters focus on guns instead.
Big Game was better than both, don't remember how the predator is taken out, but I don't think is by pushing or hitting him with his own mask, the predator in this one was more interesting.
Still none were as bad as Forever Midnight, now that one did everything, humanized predators to the point of satire, completely changed the way they were portrayed and behaved in the movies, bad characters, lots of cannon fodder predators, laughable additions to predators' biology.