Yeah you can't really have ago at these guys for the badness of the films, ADI are just told what to do. You can't ignore their talent, especially if it was put to good use rather than used to make designs of Aliens and Predators that fans don't like.
For the Resurrection thing, I can accept the human dna mix explanation making them smooth, especially since it should have only been a one time thing since its limited to that particular breed but then AVP and its sequel came along and used fleshy design.
If ADI works on Alien 5 which I have no problem with, I hope they try and go back to the original giger design, either dome or ridged, perhaps both to show evolution.