The Alien Quadrilogy (Alien, Aliens, Alien³ and Alien: Resurrection) is still one of my favorite movie series of all time1. I come back to watching it regularly, maybe yearly.
The ratings I’d give the four movies:
One thing worth mentioning about the increasing possibilities and use of special effects: as soon as they get believable (not so much in Alien³) they do not add to the tension of the movie, do not make it more suspenseful. The special effects make them more gross. Alien: Resurrection is filled with moments in which you feel compelled to grimace and look away. Doesn’t add to the suspension though. Alien, the first movie, is still the best and most thrilling of the series. There they used darkness and great acting to make the horror believable.
I may talk about Prometheus in another post. ↩