Originally Posted by Tom Yum

40% Heart
35% Skill
25% Fitness

Heart is the most important thing for the same reasons that BJJ expertise states. Heart is something inherent to each person and it depends on the nature of what you're discussing, external factors (people you surround yourself with), internal factors (beliefs, attitude) and other things.

I gave skill a higher ranking than fitness because power comes from one's skill - like the example Hardman stated. To add to his story, I got my ass handed to me by a 140-lb dude.....who held a title. And once to my suprise, completely owned a 240 lb dude who was mean as f**k and a decent brawler.

The common factor here was skill.