I tend to lean towards the Aliens more because honestly I like the movies better but, they also seem more
alien if you know what I mean than Preds. However, Predators are cool creatures. They
seem to come across as a much more thinking species than doing everything based off instinct. They don't seem as mysterious as the Alien species to me. So in a sense humans can relate to Predators better because they seem more similar to us. I know a lot of fanboys from the Alien group don't like to hear that, but I consider myself a bigger Alien fan than Predator fan and that's still how I see it.