Hi Everyone.
My first post.
But here's my first suggestion for the perfect sequel.

AVP2

What we do is have 2 ships crash onto a deserted planet.
Let Aliens loose on one side.
Let Predators loose on the other.
Put Michael Buffer at the equator with that cool mic in his hand.
Ring the bell.
Let'em go.

Last one standing wins.
How's this sound?