Pistol.
I'd say "Minimalism FTW", but at the other hand I do find the coolest thing about it that you can improve something so simple to something so PWNING with traits and mods.
Oh and you can dual wield it. :3
EDIT: By the way, I remember I once did a super poll including this question, so this is actually not new. :P But ok, I guess the community (and the drl versions!) have changed pretty much over time.