The first active fighter to make the list is the current UFC Light Heavyweight champion, Jon “Bones” Jones. Many fans may argue that Jones doesn’t deserve a spot on this list ahead of someone like Tito Ortiz or Ken Shamrock, but the amount of things he has done in the sport already before his 28thbirthday are remarkable. He holds a 20-1 career record and is currently considered to be the No. 1 pound-for-pound fighter in the world. His lone loss came by disqualification against Matt Hamill in a fight that Jones dominated from start to finish. During his brief career, Jones has already defeated former world champions Rashad Evans, Quinton “Rampage” Jackson, Vitor Belfort, Lyoto Machida, and Mauricio “Shogun” Rua.