Predator aliens make a neat villain for a one off supers campaign. With their preference for hunting dangerous prey, what could be a more suitable victim than a gun touting cyborg or a 7 foot wall of living rock? The fact that they kill villains and heroes indiscriminately makes them a bit of a head-scratcher in a who-dun-it type adventure. Added to that the fact they are invisible, super strong and have cool high-tec gadgets too, any you have a ready made plot for a great evenings adventure.
I got this figure of Leon, who gave me a big bag of his hand-me-downs (thanks Leon). It's Copplestone Castings. It's also going to be useful for my scifi campaign, and for AE Bounty - I do like figures that are multi-functional.