But once I heard her call herself the best fastcourt player, Chris the best slowcourt player and Steffi the best allrounder. Perhaps that comes the closest to the truth.
One remark on that fastcourt prowess.
My simple theory:
IMO, one of the reasons is the climate and weather conditions. Unlike in Spain with mild climate which produces great clay courters, in Czechoslovakia/Czech Rep. there are long winters so players have to train indoors a lot and they become accustomed to these indoor (and usually faster) courts more than other players.
Martina has 9 Wimbledons and 8 YECs in singles (both all-time records).
Ivan Lendl holds the ATP indoor winning streak record: 66 consecutive carpet court match victories.
Jana Novotna has won both Wimbledon and YEC.
Martina Hingis, who trained mostly in Czechoslovakia and Switzerand (both countries have harsh winters) has also won both Wimbledon and YEC (twice).
And as you may know, until recently Petra was on approx. 30-match indoor winning streak and is already a Wimbledon and YEC champion.
But perhaps this is pure off-season speculation
Maybe you can provide some insight on Chris Evert's clay court excellence?