Although I'm not Hughes fan, I do respect his accomplishments and his fights for the most part weren't boring which is rare these days from a wrestler.
I agree 100% with top criteria for scoring should be damage. The point of of the sport is to submit, ko or give the most damage possible in order to come out on top. If there is no submission, or ko and it goes to a decision, the person giving the most damage should win. 10-9 rounds make this difficult in which you get matches like Lyoto v Rampage, BJ v GSP 1 etc.. but it's a step in the right direction.
"Let them see that their words can cut you, and you'll never be free of the mockery. If they want to give you a name, take it, make it your own. Then they can't hurt you with it anymore." - Tyrion Lannister