misfire200: Well i would have to disagree with you about it not being a "franchise"...Alien and Aliens have always been considered almost equal to eachother in reviews, ratings, and are both great in their own right. If anything Aliens is more iconic of the franchise in today's image than the original movie. When you mention the series most people will recall the marines, and the little girl Newt...rather than the first movies plot.
Claiming that the movies aren't a franchise is of course silly and just the usual provocation / trolling.
However, regarding the second movie, we seem to live in different worlds. ;)
Where I live, the second movie (when it came out) was slammed when seen as a sequel to Alien, though recognized as perhaps a good action movie. It completely failed to grasp the horror atmosphere of the first movie and replaced it with a generic action plot around a platoon which, predictably, gets reduced according to the 10 Little Indians principle throughout the movie. Where Alien has atmosphere, Aliens has big weapons. Where Alien has dialog and interesting character interaction, Aliens has the shouting of tactical commands. Where Alien is an original cinematic masterpiece, Aliens is a completely forgettable run-of-the-mill action flick which exploits an interesting setting.
I also cannot confirm your claim that people will recall more stuff from the second movie than from the first. For example, I even though I saw the first movie years before the second (and had years more time to forget it), scenes like the Alien bursting out of a body, or the final scene of the android, or the ending of the movie, are still etched into my memory. Of the second movie, the only scene that I remember vividly was the utterly predictable death of one specific marine, because I groaned when I watched it. I don't even remember an android _being_ in the movie, and I don't remember the ending, I just do vividly remember how disappointed we were. In fact, me and the person I watched the movie with, found it so disappointing and boring and predictable that we kept betting on which marine would die next, to get a small bit of entertainment from the movie and not make it a total waste of time. At that time, watching the movie was a disheartening experience, because it felt as if something that had been great cinema had sold out to the onslaught of atrocious, mindless action flicks that rolled through the 80s.
So, in conclusion, I think I can't agree with your assessment. ;)