I've lost count of the actual number of times Aliens have been pitted against someone in a comic. It's surely enough that it doesn't matter any more, and we can just throw them in the ring against anyone. I mean, if they can fight Batman and Robocop, then surely Master Chief -- who fights in space for a living -- is on the cards.
That image up top is by Martin Houlden, an artist who currently works at Frontier Developments, the studio currently trying to scrape together enough cash to make a new Elite game.
You can see more of his work at Martin's personal site.