^ Dream on. Yes, while Serena did have a stellar year, she still has a lot of catching up to do. She is still way behind Chris Evert & Margaret Court. Most of us, including several list referenced, are considering total (career) achievements, not peak level of play. As I detailed in post #35, even with Serena's stellar 2012 year, there is still
a vast gulf between the achievements of Chris and Serena. Ditto for Margaret vs Serena.
Perhaps Serena has overtaken BJK. Perhaps not. Serena has 15 singles slam titles while Billie Jean has 12. OTOH, BJK has a total of 129 singles titles while Serena pales in comparison with 47. If we take a look at total number of grand slam titles, BJK has 41 compared to 30 for Serena.
Note that the WTA Tour records link I provided in post #35 (and below) does not show all the accomplishments of Margaret Court and BJK since most of their career accomplishments pre-dated the WTA.