here goes mine:
djokovic’s forehand (watch the 07 us open final and its not hard to notice how massive of a change it was)
wawrinka’s forehand (no need to comment here)
nadal’s forehand
federer’s backhand '17-'18 (that one is questionable, maybe its more due to the larger racquet frame)
doesnt come close to most of forehands in his era, alcaraz is a beast with absurd vision, but it doesnt come close to nadal, gonzalez, warinka, or federer’s. i might be being nostalgic here, but i dont see that forehand dominance anymore and ironically djokovic is the one who does it