I agree with Zero05, I like the concept of the bone accents. Obviously not on all Bio's, but for a few here and there, why not? They are Hunters and wear bones as ornaments, it's only natural that at some point, a Predator would think to put some on their bio.
I would say Tusky, because personally I really like the Tusks, but I'm not a huge fan of his actual Bio. And I'm not really partial to the lines and angles of the Falconer Bio either. It's a new take on it, which I applaud, but I definitely like the more rounded look. So out of the 3, I guess I'd have to say Berserker. I liked his Bio underneath and the Jaw is growing on me, it makes him look more menacing. I like the classic Pred's though, he wasn't included in the pole and the design was simple, but I like it.
If AVP can have linebackers with really technical looking Bio's, then why can't these guys be more reptilian and Primal looking. I'd expect there to be diversity throughout the species
* Wolf still takes it though.