The first two rocked (especially the 2nd), the third had some good moments;a new alien 'form' depicting its ability to take aspects of its host(maybe will get to see a predalien in AVP), the beastie running along the ceilings & walls, the alien surviving the liquid lead, &, oh yeah, Ripley biting it!!. I liked Alien ressurection up to all the junk w/the 'newborn' No sir, didn't like it.
I have high hopes for AVP, but, w/my ability to suspend disbelief (I actually kinda liked BAttlefield Earth I dont think I'll be to dissapointed