Predators are smarter, more patient, and far more intelligent... with so many delightful ways to kill you. and pretty much anything else. just everything they're about, the hunt, the trophies. the fact that even though they're basically killing machines they still obey a strict code of honor. Everything about them just screams awesome...except for AvP of course. I think the Predator is the best scifi alien ever created. and of course the Aliens are right behind in the no.2 spot.. more like 1.5 actually.