Very interesting question. I can’t think of a vicious puncher I stayed a fan of throughout their career except Benn. Lots of big punchers, hard punchers etcetera but not what I would call vicious. On the other hand many I started out a fan but bailed when it became clear they were monsters(like Valero) or fake(like GGG). Spence would be the only current fighter I would call vicious I really like.