I wrote: "A Predator's character's defined by the qualities of a hunter, hunters vary a lot in practices, but within that criteria they are all hunters, they are all Predators."
This works in the context of just the Predator franchise, when you bring in Alien I must be more specific.
"A Predator's character's defined by the qualities of a extraterrestrial hunting only for sport, hunters vary a lot in practices, but within that criteria they are all hunters, thusly Predators can also vary in every way a human being hunting for sport can vary."