First things first, Alien 3 is not as good as Aliens and is a mediocre movie to boot. Alien 3 undid the plot points of Aliens within the first few minutes by killing off nearly everyone. That was disappointing and it makes viewers felt as if Aliens was just a waste of their time. Alien 3 also seemed to dialed back a lot of the action elements, there are now only one alien and no guns at all, similar to the first movie but lacking the tension and horror. Most of the movie is also spent with the characters talking about the alien. The main character, Ripley, is unlikable this time around. She becomes tight-lipped and acts irrationally at times, being hostile towards other characters. The other characters, who inevitably will be killed, aren't developed enough for you to care about them. Ripley's... situation with the aliens is never fully explored, it would have been nice to know how that thing came to be and the significance of it. Instead, it is glossed over with one or two lines.