After watching the behind the scenes stuff for all the movies, the director of Alien 3 is definitely a genius for making it as good as he did with the crap (and lack of material) he had to work with. On the flip side, I think it's amazing how bad the 4th movie turned out, given stuff they had to work with (namely Joss Whedon's script - not that I consider the guy some writing god, but I'm willing to give the guy the benefit of the doubt that they screwed up executing what he wrote).
I rather liked the first AvP movie, actually, even if it was a bit bland or generic. The second AvP felt like they were trying to "Aliens" it up with the action, but it just came off as rather pointless, in part because I don't think I cared for any of the characters. At least the first movie had the Bishop-like Weyland boss, which I thought was cool.
I'm not really interested in seeing a prequel (even if it is from Ripley Scott, though I sort of agree with the "every Alien movie is different" philosophy), but I'll probably end up seeing it anyway because I'm a sucker for the Alien franchise.
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