I fall in love with "Alien" since I watched the first film os spanish tv on 1980´s the only way I could see it because my father never bothered buying a VHS video player (He never has been very interested on movies) and we didn´t have one till I grew up, earned money and bought a Panasonic one.
its unique iconography an production design, its state of the art cinematography, the perfect creation of an opresive suspensefull and chilling atmosphere....all that fascinated me.
And about the entire quadrology; I admire the producer´s boldness about searching young new talent director as Cameron, Fincher, and Jeunet and letting them to put his personal touch on the saga (Even in the case of "Alien 3" and the Fincher´s problems with the studio you can still see the director personality in the finished film), It can be considered an unique case of "auteurs blockbusters franchise".