Again none of this shit matters, this is a fight between two lightsiders on a sail barge on Tatooine.
Why you guys keep bringing up Malachor and it's corrupting effects and all other shit not related to the fight, is turning this more into off topic.
It's not helping that it's just the same things being repeated over and over again.
So back to the fight at hand yes?
I feel that Luke takes this, just sheer sabers he has shown as being stronger and faster than Surik. The skill shouldn't be all that off considering both have instantaneous learning curves.