I voted Other, since I'd choose Shadowrun. I loved the gritty, bad-@@@ feel of it. I liked the contrast of feeling like a gnat on the one hand (when dealing with megacorps like Aztec and the like), and a BMOC during a lot of the runs.
Of the games I haven't actually played, I'd love to give Traveller a try sometime.
GURPS. The rules click with me easier than a lot of other systems. Basically, you roll equal to or under your skill level. And you can have whatever skill you can afford (and the GM allows). Structured, but flexible.