Officialy, there are types of predators, as was the humans were in the stone age. Like humans there are the basic ones such as...
Archer: Masterly trained for long ranged combat.
Axeman: Trained souly for close up weapon combat.
Those are sort of the basic ones, not all are the same like the fact that Chopper had Muals on his arms and the rest didn't. "City Hunter" had more weopons, mind you the makers might not of thought of them yet, but I will try to quote a makers thoughts, "We'll try to change this predator a bit, more weapons, new Plasma Caster, so on, just an attemp to give him a bit more character." Obveously, looking at the weapons, there are different types of Yautja.
~~~~~HUNT THEM DOWN~~~~~