Best brown belts in the world (submission-only)

I watched the majority of the brown belt matches from worlds, and here are my top 5 brown belts judging by how they would do in a submission-only tournament:

1. Keenan Cornelius
2. Jackson Souza
3. Paulo Miyao
4. Sebastian Brosche
5. Joao Miyao

Here are the videos of their matches:
http://lexfridman.com/blogs/training...f-2013-worlds/

I know the results of 2013 Worlds tells a slightly different story. Who do you think is best brown belt?