#3 Sable
Before being known as Brock Lesnar's wife, Sable was one of the first WWE Divas, and gained considerable popularity in the Attitude Era. She was the biggest villainous female superstar in WWE at that time, and the second woman to win the WWF Women's Championship.
Sable was in a dispute with WWE, which lead her to be stripped of the Women's Championship on-screen. She was also very unpopular backstage, to the extent that Sean Waltman has since admitted to playing a nasty practical joke on her last day with the WWF.
In June 1999, Sable quit the WWF and filed a $110 million lawsuit against the company, citing allegations of sexual harassment and unsafe working conditions. She claimed to have filed the lawsuit after refusing to go topless on TV.
During the lawsuit, Vince McMahon counter-sued her over control of the stage name "Sable". Sable reduced the amount she was seeking in damages, and they eventually settled out of court in August 1999. After her WWF exit, she made an on-camera appearance as an audience member on World Championship Wrestling's Nitro on June 14, 1999.