...is whoever you are dancing, kissing or having sex with right now. If you're not doing any of those things, then you can basically just pick a woman at random and you'll be sure to piss someone off.

I know this sounds trite and corny but I really believe that, if you're doing any of the above things correctly, everyone and everything else in the world disappears, so how could anyone else take the title?

Unless you're doing them in a non-dyadic fashion in which case things get more confusing.