My three games are
1. AVP flash game
2. The Sims 2
3. Starcraft II
So? it doesn't, really, work? Unless Soja is a villain, but I don't think sleeping with absurd numbers of women is actually villain-status unless you're like killing their husbands or something. In any case, better to be the hero of first fighting villain of second than the other way around, though

And the setting of Starcraft just heightens the atmosphere, really? unless I get to also fight the zerg; then I will probably seriously overestimate my abilities and die pretty fast. Though it would at least be a kick-ass death if it was a lot of lings or something.
[edit: Wait, unless The Sims' villain is Death? in which case I guess I'm screwed eventually. Unless we have to duke it out right there, fighting-game style, in which case that pretty much sucks because I'm pretty sure you can't impale Death on the end of a predator's spear.]
That said, the zerg must never be allowed near xenomorphs or the Terrans are in for a whole new level of pain. (and yeah, the zerg are probably a lot more powerful than the xenos; that's not the point: the point is INFESTED ALIENS. Like hydralisks but with a functional tail and speed off creep?)