The original is the only version that gave me a true sense of dread, so it's still the king for me. But I can't say I turn my nose up on the various alterations over the years, they just never provoked a sense of dread for me. But then a lot of it has to do with my overall view of all the films in the franchise....
There's Alien 79.........
Then there's the rest of the Alien films.