Alien, easily. I couldn't believe how good it looked on Blu.
Aliens was also bloody good, but not quite as jaw-droppingly spectacular as
Alien.
3 and
Resurrection were a noticeable step down, but they still looked very nice indeed. I agree with Mr. Weyland about being disappointed they clearly didn't get the same amount of attention, although I am
so happy they went back and fixed the dodgy audio for the Assembly Cut of
Alien 3 (even if Murphy now calls out for a non-existent Spike and the W-Y scientist's voice changes between scenes
)