Recognizing a human that helped him in AVP emanates intelligence, not a longing for puppies IMO. If they have the smarts to develop all the tech they have (unless the tech is all spoils of war) they have a level of intelligence that would recognize the enemy of my enemy. I don't think it took away from the intensity factor. The only part of AVP that I don't buy is how a Pred allowed himself to be seeded by an alien. I don't buy that for half a second and always shut off the movie

before that stupid ending. He'd have done himself in or had the human do it if he didn't have the means. Come to think of it, something like that would make a good story....hummmm.