Apocalypse Now - Theatrical. The only version I've ever seen. One of my Top Ten films.
Alien - Theatrical. The only version I've ever seen. One of my Top Ten films.
Aliens - Haven't seen, never going to.
Blade Runner - Director's Cut. Removal of narration and sunny ending were vast improvements. One of my Top Ten films.
Terminator 2 - Saw it once in the theater and remember almost none of it. I didn't dislike it, but I'm not a fan.