If anyone watched last night's UFC bouts, you'd have seen why it pays to be BIG and STRONG. Gleison Tibau knocked out Caol Uno and Roy Nelson knocked out Stefan Struve. Remember these guys are in weightclasses with their opponents and the winners came out on top because of their superior strength and power.
Not that skill counts for nothing. Kenny Florian defeated the legend Takanori Gomi by picking him apart with jabs until he shot and pulled Gomi into a rear naked choke. It was truly a thing of beauty.