Most skilled swarmer/pressure fighters

Nah, the difference between Marciano and Moon is the fact that Marciano did what Moon did while he was a heavyweight. Sure, he was also better defensively, but his defensive skill was virtually nonexistent. The fact he could do what Moon could do while both being 70lbs heavier, and a much harder puncher pound for pound is why he was so much better.

 

I think Artur Beterbiev is starting to get to that level as being one of the more skilled pressure fighter of this era.

 

Not called for IMO. Beterbiev isn't nearly good enough for a list like this.

 

He might have a case if he manages to beat Bivol convincingly. But yes I agree he isn't up there with the guys on that list.

 

Diego Corrales
Jose Luis Castillo
It's why their fight was so epic.

Aaron Pryor? Only saw a few fights of his but he was dishing out some beatings. (edit:saw he was already listed)

 

I wouldn't consider calzaghe a pressure fighter