The Ultimate Hunter is the waxy one. I didn’t even know there was a 3D release, so the ‘good one’ is the standard.
There was fuss over the standard version not looking ‘hi-def enough’ and that’s what created the super DNRed Ultimate Hunter edition. The standard isn’t much better than the DVD.
So, really, they’re all ugly mothers.

JEDIT- just googled ‘Predator 3D bluray’ for a little info, and this is the first thing I saw, before even clicking the blu-ray.com link:

Predator 3D Blu-ray features poor video and great audio

So I’d stick with the standard.