All time greats who are about equal to each other on all surfaces
Who are some all time greats, both top end, and lower end, who you think are just about equal on all surfaces. As far as overall greatness and ability, not neccessarily the head to head matchup. Here would be some of mine:
Graf and Court- granted Court didnt get to play much on hard courts, but I imagine they would have been close on that too.
Goolagong and Mandlikova
Wills Moody and Lenglen
Seles and Henin- the one exception is probably slower hard courts. On grass, clay, faster hard courts, and indoors, I think they are about equal on each, obviously both only about 40% as good on grass as they are on clay for instance.
Serena and Venus- except on rebound ace where Serena is light years ahead, but on everything else pretty equal.
OK so in some cases I gave examples of all but one place. Can some of you think of any. Actually it doesnt even have to be all time greats, just any combination of players you can think of. Possibly Sanchez Vicario and Sabatini is another one.