... Was AWESOME! But I'm slightly biased since I am a fan of both the Alien and Pred series (though strangely enough I wasn't terribly fond of the AVP movies).
I thought there were things that could have been different or improved, but I liked it none the less. Won't go saying much here as I don't wanna spoil it.
So basically... if you liked the Predator movies, it's probably worth your while to see Predators on the big screen.