It's perfectly fair to compare those movies to Star Wars. They're movies, therefore they fall into the realm of reasonable comparison. Comparing Star Wars to Final Fantasy would be a little pointless, but not comparing it to Battlefield Earth.

And Alien vs. Predator was a monstrosity. All it had to be was 90 minutes of Aliens fighting Predators. How fucking hard is that? Apparently impossible for Paul W.S. Anderson to pull off.