FireHunter,
Xenomorph,
11 years ago
The question involves the creatures from the films, not the site. And when it comes to all out warfare upon a barren wasteland, the aliens would get torn apart, seeing as in total there's probably about fifty actually seen all the movies, not counting the pyramid scene in AvP. You'd have three queens, a predalien, a runner, and roughly forty other aliens. And there would be twenty-seven predators including the elders seen. The predators have long-ranged weaponry, which would mean their victory on a barren wasteland. However, if this same battle was to take place in a jungle or on a spaceship, you'd have a much different story, assuming the predators don't self-detonate.
Although, upon a barren wasteland, you could probably even include the hundreds of xenomorphs from the Pyramid scene and chances are the predators would still come out on top.