Well my criteria is a mix of everything I suppose, wins, losses, peak years, longevity, domination over a or multiple weights, skills in the ring, how they looked in their best performances etc... I just don`t include fighters that I can`t view for myself.
Don`t blame me, blame the incompetent ****s that never bothered showing up to film any of Greb`s 300 fights despite him being that good, that **** is what doesn`t sit right with me :-(