Prey was a pretty bad ass novel, way ahead of it's time and perhaps one of the best well known AvP novels there is out there to this very day. What I loved about Prey was the concept of the Yautja which Perry had laid out, which was pretty cool and all, also the fact that the Aliens were seen as many creature but with a singular living mind. The humans also made the book great because they hated their jobs, lives, whatever.
In my mind it's a book I'll read to my children!
-Rakai'Thwei