I'll insist to the day I die that Alien 3, especially in its 2003 "Assembly" Cut form, is a far better film than everyone gives it credit for.
To me, Alien 3 is to the first two as Return of the Jedi is to SW and ESB - flawed, nowhere near as good, but not terrible.
Alien Resurrection is a steaming pile of shit, though. It depresses me to think that Joss Whedon had a hand in writing it.