Tapology named Georges "Rush" St. Pierre the greatest MMA fighter of all time, while About Sports and Bleacher Report both picked Anderson "The Spider" Silva as the greatest ever. Among female fighters, Ronda Rousey won the 2015 ESPY for Best Fighter.
St. Pierre has a career record of 25-2 and is a three-time MMA welterweight champion. He vacated the title to take some time off from MMA and has not yet returned to the ring as of September 2015. Silva has a career record of 33-6, but in February 2015 was suspended for one year for steroid use. Rousey is undefeated in her career, with a 12-0 record as of September 2015.