QuoteYou are right, but I must say that Aliens are not more "civillised" than Predators, yes they don't need technology, it's like saying ants are more civillised than humans, I know Xenomorphs are an alien creature but still.
Technologically Preds are more advanced indeed. Seemingly what they use it for? Chasing hard targets, going after myths, danger, even if it can mean risking their lives. And they have technology to create energy based weaponry, yet they are running around in body mesh and use spear, or other types of blades. They can be intelligent, they can be advanced yea, but for what purpose? They are cavemen from space, really.
Aliens on the other hand can organize whole groups in order to follow one single mission, and can even sacrifice themselves to achieve one goal (see aliens, a:r). Also their level of intellect cannot be known. On this ground, I see them much more civilized than preds.
And it's not a bad thing. The savagery and tribal brutality of the predator creature is something that makes it even more interesting (connected to their level of technology) in my eyes.