May be the best horror film of all time.

Rating: 10/10 (30 November 2005)

This is one of my favorite movies ever. It is awesome.
When Aliens comes up on cable I still find it hard not to watch even though I've seen it over 20 times.
It is no longer scary for me, but it is still such a great movie and filled with great lines, especially from Bill Paxson.
If you want to be scared out of your pants, watch Alien 1 first, then Aliens 2, alone in the dark after a few cups of coffee.
In Alien 1, Director Ridley Scott uses a camera trick of leaving open space in the scene, creating a not-so-subtle expectation in the viewer that something scary will pop into the space. This of course rarely occurs, so the viewer builds incredible tension that is never resolved.
James Cameron starts up Aliens 2 with the same trick, but then shoves that aside for a never-ending onslaught of Aliens from all directions.
Aliens 3 was pretty weak.
Aliens 4 was better than 3, but still nowhere near as good as 1 and 2.
Just saw Alien vs Predator. Judging by the other comments, AVP seems to be nearly universally hated. I didn't hate it. I found it entertaining and liked the way it filled in historical aspects about the origin of Aliens and Predators and how the tmeple came to be there.