I'm going to defend
Alien 3. It's my favorite film in the series.
Alien 3 is perhaps the most nihilistic and depressing mainstream film that Hollywood has ever produced. The whole point of the film is to invert every expectation of the series to date. Yes, it defeats the whole point of
Aliens, but that's its genius.
Aliens' happy ending was...
wrong.
Alien 3 shows how cruel, callous, and uncaring the universe is. Everything that Ripley has fought for has been corrupted. The innocent suffer the most. And no matter how cruel, vicious, and depraved you are, the universe will come along and fuck you up. That David Fincher could take a production as troubled as
Alien 3 and create a film that is haunting and lyrical demonstrates the man's genius.
Alien 3 is the necessary corrective to the excesses of
Aliens. It's a brilliant film, and perhaps the only film in the series that will stand the test of time.