For me, it was just... weak. I mean, this was supposed to be the big one! This was ALIEN vs. PREDATOR. THE battle to end all battles. Forget Frakenstein meets the Wolfman, this was IT.
In concept alone, the movie was awesome. Two of the most feared sci-fi villans of all time in a battle to the death in an underground Labyrinth smack in the middle of a frozen wasteland.
Think about it. This movie was supposed to have the creepyness of Alien, the action of Aliens, the gunplay and badass-ness of Predator, and a new and original concept. It didn't.
This movie has been a dream of the fans since the year I was born (no joke there) The fact that it was so mediocre is, as Dave out it, a slap in the face.