Just look at the ratings, especially in more individual sports like boxing or even basketball where less players are involved. Miami Heat, Lakers, Boston, Mayweather, and Mike Tyson all drew the best ratings of all time because of their superior level and domination. People love the story of the underdog and the ratings show exactly that. What you prefer personally is your opinion, but the numbers don't lie when it comes to my comment.
One major problem with this, all of those sports you mentioned there is a clear objective, and it makes it obvious whom is better. No one fights Mayweather, and just a judge, I like his style better. No, Mayweather wins by KO, TKO, or UD every single time, because it's obvious he outboxes his opponent. In freestyle, it's different.
If there has been a top dog in recent times, it's been Andrew Henderson. He's been the most consistent performer in freestyle competitions in recent times. He's won several majors as well. I'd actually say he's the most equipped to be dominant, but even he cannot win everything. He's extremely well rounded, has many super difficult tricks, has a great flow, and he brings personality to his performances. There however are more than a few guys capable of beating AH on a given day, and that's why he isn't completely dominant. The same would go for Michryc or any other top freestyler.