Predators are pretty sweet, but the Marine is my favourite. I don't think the Marine gets the credit he deserves, everyone thinks he's weak compared to the other two, but the way I play as the Marine, the other two species check for me under their bed before they go to sleep.

:lol: I don't know, on a scale of awesomeness and overall strength in fighting abilities, it goes like this: Predator>Marine>Alien
Aliens have strength in numbers, and that's about it. They really have nothing going for them other than being scarily stealthy and able to climb walls, as well as the massive hordes of them that can spring up out of nowhere.
Marines ARE cool, they are trained and they're packin' some serious firepower in most cases, but I guess the Alien movies kind of ruined their image for me, "Its over man!"
Predators... do I need to say more? Firepower, incredible martial abilities, kick ass dreads, as well as some of the best technology and tactics in the galaxy. Once more, :mohawk: