The big problem with the games won % charts is the same as the one in the best return thread, which is that they don’t correct for all the stuff that happens after the first shot. This is partly why Djoker and Nadal rank so highly. I remember Nadal holding an insane number of times in a row in 2013 despite having a completely average serve because his in-rally forehand was unbelievable
To do this properly, would have to look at those stats alongside ones like unreturned serves % for both the player and their opponent, plus % points won in rallies under 3 shots