Alien 3 was Sigourney Weaver´s film and was really disgusting. Only Alien 1 was really good, and Alien 2 was a videogame like film, really.
I thought it was good so did many others. Yes Newt died but the whole thing of a prison colony being at the mercy of an alien with no means of fighting back was novel. They also introduced the 'dog alien' which is a subspecies of the alien species as it was born from a canine.