Not talking about skillset, just athleticism. Something people forget when talking about athleticism is that it doesn't just include explosiveness. It includes cardio, flexibility, speed, explosiveness, and probably others that I am forgetting (It doesn't include chin). Also not talking mental faculties, because that includes things like timing, heart, fight IQ, etc. Who are the best athletes right now? My couple of picks are: Robert Whittaker, Volkanovski, Khabib, Reyes, Overeem, Garbrant, Usman, Costa (questionable cardio), Wonderboy, Luque?,Zhang, Joanna, Shev, Nunes, Cejudo. That is my basic list. I think the most well rounded is Whittaker, with his cardio being endless, his speed is top notch, he is very explosive, and his flexibility is good as well, he can throw headkicks without a problem. Other notables include Volk, Overeem (who at the end of his career still has great cardio, flexibility, speed and explosiveness), Zhang (who i'm suspicous of in terms of PEDS, but is ridiculously impressive), Garbrant (who is stupidly fast, and his athleticism it top notch, but gets let down by his chin and mental abilities). Cejudo, who is just a freak of nature. I didn't include normal picks like Romero, because his cardio isn't really there. Any others that I am missing?