I've said this before, but Borg is the god of tennis. I don't think anybody would question that. Sorry, Federer, Sampras, and Nadal fans, but I think the highest he (or anyone else) can get is to be Bjorn's second in command.
BTW I'm not dissing those players.
Favorites: S Kuznetsova, M Baghdadis. J Jankovic, Henin, Gonzo, Federer, Nadal, A Sanchez-Vicario, Boris Becker, G Sabatini, A Mauresmo