I can't believe how blinkered some of the comments on here are. The ADI guys were working with Stan Winston studio on the second Alien flick and beyond. From a technical standpoint, the Aliens and Predators in AvPR are way beyond that of the older films. The creature suits have never had such mobility. The amount of ACTUAL SUIT work in AvPR, considering the style of action, is very impressive. Quite where the blind devotion to Stan Winston studio comes from I don't know. Some of Winston Studios more recent work has been less than impressive, and ADI isn't the only creature shop to usurp the throne.