I used to dislike Alien 3 a lot more back in the day. I watched it again some time ago and it bored me. The major point was I already knew the monster so the major suspense element was gone right of the start. In Alien, the monster is not shown and remains in the shadows for the most part till the last confrontation. In Aliens, you know the monster but there are lots of them and another unseen element, the Queen alien. With Alien 3, if you don't really care about the personal drama, all you have left is a redo of Alien and since you already know the monster it doesn't offer all that much. I never cared for any of the characters in Alien 3 either. Ripley was way better as tough space trucker or as the queen bitch protecting Newt.
Actually, thinking it over, Alien 3 would have been a lot better if it had been just about Ripley having a new queen alien inside her and not have people with makeshift weapons running around, since we already saw that in Alien. The corps coming after her would have provided a sufficient antagonist and the whole inner struggle between letting the corps have the unborn queen alien vs. Ripley taking her own life along with it would have meshed nicely with the previous two movies, specially with Aliens. "Just tell me one thing, Burke. You're going out there to destroy them, right? Not to study. Not to bring back. But to wipe them out." I believe were the words.
Ah fuck it. In the spirit of Nimismiehet, if you think Alien 3 is the best Alien movie, you've smoked one bonzai too many.
-Gunhead