Half-decent. Good action and special effects, but @$$ acting.

Rating: 6/10 (7 August 2005)

Not a bad work. The special effects are thrilling, and the action borderlines intense, but the acting is crap. And the fact that two of the(will not list what species) are killed in the same scene was dumb. It's not very Alien versus Predator, if two of the (will not list what species) die back-to-back.
I did like the idea of a pyramid in Antartica, but to have it under the ice blows chunks, and the movie takes to long to pick up. Sure there's a snippet or two here and there of a Predator ship, but other wise, no extraterrestrial action until later on. The plot is mediocre and full of holes, and, as aforementioned, the acting is poor, and when coupled with your aunt's constant jawing about what this person or that person should be doing, you've got yourself a heaping platter of man-speak that will drive you insane. If you know of someone who won't shut up during a movie about the characters and their actions, do not watch this movie with that person.
On a positive note, as I have already said, the fight scenes are really cool, and the Predators and Aliens look much better than they used to. The movie also features really nifty camera angles that make for cool shots. And of course, the last battle between Predator and Alien features potentially the coolest action shot ever (but I'll let you see for yourself). So, in short, decent with good special effects but poor acting. 6 outta 10.