Amanda Nunes
José Aldo
Stat by stat
Bars are scaled to the leader in this list.
The verdict
Dead even across the measured categories. Our all-time ranking places Amanda Nunes at #6 and José Aldo at #8.
The case for Amanda Nunes
The greatest female fighter in history, 'The Lioness' is the first woman to hold two UFC titles simultaneously, reigning over both bantamweight and featherweight. She dismantled an entire generation of stars: a 48-second knockout of Ronda Rousey at UFC 207 in 2016, a 51-second knockout of the previously unbeaten Cris Cyborg at UFC 232 in 2018, plus wins over Miesha Tate, Holly Holm, Germaine de Randamie and two victories over Valentina Shevchenko. The only blemish in her prime was a shocking submission loss to Julianna Peña at UFC 269 in 2021, which she emphatically avenged with a one-sided decision at UFC 277 in 2022. She retired as the reigning double champion at 23-5, having beaten more current or former champions than any woman in the sport and settling the female GOAT debate for a generation.
The case for José Aldo
The greatest featherweight of all time, Aldo went undefeated for roughly a decade — an 18-fight win streak from 2005 to 2015 — while reigning as WEC and then inaugural UFC featherweight champion. His leg kicks were the most feared in the sport, memorably crumpling Urijah Faber and reducing opponents to hobbling targets, and he paired them with sharp boxing and elite takedown defense. He defended the featherweight crown repeatedly against the division's best before Conor McGregor stunned him with a 13-second knockout at UFC 194 in 2015, one of the most shocking moments in MMA history. He rebuilt himself as a top bantamweight contender in his thirties, challenging for that title too, and retired from MMA around 31-8. For pure divisional dominance over a sustained period, few careers rival his prime.