Which gender is the most competitive?

Superficially men seem to be. However have you ever watched an office full of women, after one gets breast implants? Every week or so, another one show up with BIGGER implants. Is that competitive? Next watch the insane frenzy, when one of 'em gets engaged and gets a big diamond ring. Always wondered where they found BFs on such short notice that had that kind of money. When women compete, they go freaking berserk!

I think that men are more competitive, but women are much more socially adept and can maneuver their way into achieving what they want in a smooth way.