Re: What type of boxer ages the best?
The most adaptable to change. Leaving aside the deterioriation caused by multiple concussions, all fighters will slow down and lose a step as they get older. The fighters who prosper into the advanced stages of their careers are those who can make the necessary adjustments to their style to minimise the effects of declining speed and reflexes.
If you look at the most successful 40+ fighters in history, there is a mix of styles.