Both are great fighters. Both have styles I admire greatly. Both were boxing inspirations to me as a youngster. That said... I think Ike beats Julio in a savage battle, his punch being the difference in the fight, maybe a KO in the 8th or later rounds. Going the distance, I still think Williams wins due to effective punching. If Chavez won though, I wouldn't call it an upset. Both were relentless. The fans would not be cheated the ticket price.