Alien DNA Group: Member Rank: Young Blood View Profile
I think the Berserker, he was already leading the party. I don't think Predators would follow a Predator that was weaker than them. Makes sense to me anyways.
Hunter's Moon Group: Member Rank: Young Blood View Profile
From what I saw in the movie, the predators were more or less even, so I would go with Tracker because he leads the Predator Hounds. Without them I'd go with Falconer because of his advanced technology.