her is my list.
1.alien
2.alien 3
3.aliens
4.aliens resurrection
aliens is for me so low because the alien warriors are so small, and really move like stuntman in creature suits, the thing i really like from aliens are the queen and the nest, and thats it for me.
don't get me wrong i like the movie but for a alien movie it just doesn't do it for me, same thing with alien resurrection.
alien and alien 3 really have the good admosphere( sorry for my english), with just one alien in a closed place and that is the way i want to see a alien movie.
JB