There's so little footage of him but what there is is phenomenal. I remember being struck by the economy of movement, no wasted motions. You don't see that too often in any time period. It reminded me of the way JM Marquez, or Pongsaklek Wongjongkam would move, but with a very different style from those two.
Not sure where exactly he is in the MW rankings, but he looks impressive on film and beat some good names. He looks like he'd be a force in any era.