I think aliens are cool as hell.
But in a fight the Predator would win.
Aliens , minus Kanes son , have shown animal level intelligence and rely on instincts.
Lets say a Lion represents and alien and me with a shot gun is the Predator.
I'd blow it away despite it being " stronger and faster " I have weapons. The Predators can create weapons so don't bash them.
The aiens are like animals who only rely on what they naturally have. Aliens have been felded by machine gun fire.
Predators have taken number machine gun shots.