Aliens vs Predator

[Canyarion]

.... what are you talking about? What the heck is Freddy vs Jason?

This is Aliens vs Predator... this is legendary.

[Rumpelstilzchen]

Oh yeah.

Ignoring the fact that Humans have beaten both Alien and Predator in their respective movies... it is seen that the Humans had a much easier time destroying the aliens with simple machine guns (in Aliens, the movie). Predator, on the other hand, was either not killed (in the second movie) or it self-destructed with a nuke (in the first).