Personally, I really like the new bios...it's different then what I saw so far and completely different then any bio in any Predator or AVP movie. Although the underbite bio resembles the Wolf bio in a few features. His armor is like an evolution of the original armor, I'm lovin' the concept. I also like the fact that they're not big an bulky like the AVP Pred's...they looked like walking tanks.
The Tusk bio, I agree that the tusks could be a bit thicker, but overall I like the concept. It looks like something Uratz would come up with. It's like a nightmare gone horribly bad.
The "stealth bio" [I think that's its name] looks pretty cool too. It's a good mix between sharp edges and curves.
Now onto the "new pred's". The whole entire concept, "Bad Blood" [or whatever you want to call them] hunting other Pred's is a pretty sweet concept. I mean seriously, the Predator is the meanest badass in the galaxy and is at the top of the food chain. Now we have a "New Breed" of Pred's that hunts them...I agree that when I first saw it, I was like...ahhh? But I came to like it. It's different-new. I believe that for the concept, it called for something this unique. I mean, to me and in my opine, there is no "right" or "wrong" Predator.
For example, look at us humans. A persons average tongue can only go out so far, perhaps like 1" or so...then you have Gene Simmons. The average human mouth opens only so far...then you have Steve Tyler.
I give RR a big

for the concept and so far what we have seen...it looks like it's going to be great. I think for a first bio sculpt, I'll try the "underbite bio"...so far it is my favorite.
Hez, it would be interesting to see a sculpt of the "Tusk Bio" without the Tusks...
Other then that, we have a new badass Pred movie coming out in less then a month and I say.....
let the HUNT begin!