Sputnik Bulgorov
Professional
slam h2h vs Big4 at age 28-31:
Djokovic 9-0
Federer 5-7
Djokovic dealt much better with the same players.
The circumstances are different. Djokovic is dealing with his peers. Murray is retired now and Nadal can barely play a few tournaments in a row without being injured. Djokovic has no younger rivals.
Fed was dealing with the same players who were at their absolute peak while being older himself.
Anyway, I'm not trying to knock Djokovic. His mastery over Nadal is incredible. I just wish you'd acknowledge that Fed hit his 30s in a much tougher era the same way you say that he hit his peak in an easier era.