Most skilled swarmer/pressure fighter?

Josh Warrington.
I’m amazed his opponents have time to breathe. One of the fittest guys around in my opinion. Incredible stamina. After beating Framtpton, he was full of admiration

 

Armstrong
Duran
Frazier
Dempsey
Are the top tier IMO

 

Masahiko Harada, Santos Laciar.
Rafael Herrera was great and skilled offensive fighter

 

Ok with Jack, not seen Loi, so cannot say, not sure that a swarmer , is the best way to describe Basilio,s style of fighting, for me he was a pressure type of fighter, walking into opponents, cutting the ring down on them, looking to land his very hurtful body punches. I tend to picture the likes of Harada, Pryor, Armstrong, that type of approach, could even make a case for Chavez not strictly being seen as a swarmer, for the same reason, but I suppose we all see fighters in different ways.

 

We have a winner here!!! Joe Frazier best pressure fighter ever. He was relentless, literally ate opponents alive.