That's the first reason why I hate the team up: It destroys the predator character. The second reason is because that the team up made the predators uber-popular and the aliens hated by the general public (maybe hated is a strong word, but you see my point). And in AvP:R, it didn't matter if the alliance didn't exist when the pred was killing aliens as easy as piercing wet paper. The aliens got more left out and the preds rose in popularity. This is supposed to be AvP, not PkA (Predators kills Aliens). I mean, in a good AvP movie, there should be no team ups and no uber-preds. Then it would be equal and the crowd would appreciate both creatures. So in AvP 3, they should have normal preds, like the one in Predator 1. Because if the aliens owned the unblooded preds in AvP, and got owned by the Near-Elder Pred in AvP:R, then it should be an equal fight if the preds were normal.