Alien Ressurection
It had pretty good special effects.
I love the connection between Ripley and the Aliens
Cool twists.
Just complete awesomeness!
AvP was actually the first Alien film I watched and to be honest I didn't like it that much ... Yeah, it was pretty good at the beggining but for some reason it just seemed to drag out ...
So yeah, Alien Ressurection gets my vote