Aliens and Predators, two of the best movie monsters out there. And yet, in AvP we get a couple of lackluster fight scenes mixed with a lot of humans acting like they can't wait to get killed. It isn't a terrible movie but that's about all that can be said about it. Don't expect anything on par with the respective source materials.
You'd think that putting together two of the most recognizable extraterrestrial baddies would make for a great movie. Unfortunately instead we get a by-the-numbers action movie that does no justice to either race. Still, it's a watchable flick, just don't expect to be amazed, just vaguely entertained.