Well Jack Johnson was as arrogant as anybody.Taunting opponents and his corner during fights,talking to people near the ring,mocking other opponents on town before the fights.He was just ahead of his time,if he was living today he would be a star.
Roy was up there at one time but you could just say he was super-confident since if a fighter can back it up it's not really arrogance.
Dont confuse arrogance with brilliance. A lot of men have been considered arrogant..... this has been the perfect tool to bring the best out of many opponents. For mine... 'Sugar' Ray Robinson. He was hated by the M/Ws of the day.
Jack Johnson was just one bad ass muther! He have a lot of Heavy's shaking in they're boots today! Funny thing is he was also considered one of the most cultured fighters every as well.