Lew II
G.O.A.T.
If we consider hard and carpet as the same surface (UTS calls them ''firm surfaces'') to have the same number of surfaces in all eras, Djokovic is the only player in the OE with over 80% of wins on all surfaces:
Djokovic 3 (firm, clay, grass)
Borg 2 (clay, grass), Connors 2 (firm, grass), Federer 2 (firm, grass), Laver 2 (firm, grass), Lendl 2 (firm, clay), McEnroe 2 (firm, grass)
Becker 1 (grass), Metreveli 1 (grass), Murray 1 (grass), Nadal 1 (clay), Sampras 1 (grass)
Djokovic 3 (firm, clay, grass)
Borg 2 (clay, grass), Connors 2 (firm, grass), Federer 2 (firm, grass), Laver 2 (firm, grass), Lendl 2 (firm, clay), McEnroe 2 (firm, grass)
Becker 1 (grass), Metreveli 1 (grass), Murray 1 (grass), Nadal 1 (clay), Sampras 1 (grass)