After showcasing the poor Marines in the first faction trailer for Aliens VS. Predator, Sega focuses on the clear winners of the conflict - the Aliens.
The Aliens were my faction in the original Aliens VS. Predator game, and they'll be my faction in the new game as well. You can keep your stealthy cornrowed Predators, and the Marines are nothing more than cannon fodder. Give me the relentless, terrifying, ceiling-crawling Aliens any day. They have tongues with teeth! What more could you possibly ask for?
Okay, the real reason I play as the Aliens is because I am so terrified of them that the only way to avoid being killed by one is to actually become one. Either way they win the day.