not the best example my guy.. Tyson and Ali were heavyweights, they tend to have more exciting fights. There will never be an era like Duran, Leonard, Hagler and Hearns, all 4 of these fighters are great examples of excitement and skill. Don't blame Mayweather for boring fights, its his opponents fault for not being at his lvl. It was easy for the fab 4 to have amazing fights because they were all equally matched against each other.