Jones has surpassed GSP and Anderson, but Fedor may still be slightly ahead of him in achievement. Fedor was undefeated for over 10 years until he suffered his first real loss. In that span he beat notable fighters Mark Coleman x2 Kevin Randleman Mirko Cro Cop Minotaur Nogeiura x3 Tim Silvia Andre Arlovski Mark Hunt Heath Herring Jones is undefeated for 7 years, and has beaten of note DC Gus Texeira Sonnen Belfort Evans Rampage Machida Shogun Jones has a slightly better resume of beaten fighters, but I think that's mainly because he fought during a more stacked period. Fedor beat most of the best HW's of his era, and the few great HW's he didn't get to fight (Couture, Barnett, Mir) didn't favor nearly as well again common fighters and its safe to say Fedor was better than them. There wasn't a HW during his reign that was close to accomplishing what Fedor did. I believe Jones will surpass him very soon, possibly within the year, but Fedor's greatness cannot be understated. Over 10 years undefeated in MMA as a HW world champion is very hard to accomplish.