I think dominating AJ and KOing Fury is the most impressive thing I've ever seen in boxing while I've been old enough to appreciate it.
His best performance was the Gassiev fight. Briedis is the best fighter p4p that he's ever beaten. So I'd say Cruiserweight.
Arguably beat the HW champs up more than the CW ones despite massive disadvantages. Won every fight anyway though, so hard to say
I like Usyk's movement/fluidity, speed, punch output better at cruiserweight...Those fights were more exciting to watch for me...
CW was his prime years. I think Gassiev was his last true prime fight. He was unbeatable there. If he spend his Prime at HW, he would have been as scarier in HW, as he was at CW. I think people haven't watch enough of Usyk in his amateur days, semi-pro fights(WSB), and his CW fights to know what a monster he was. His footwork was insane, speed insane, his combination was absolutely monstrous, pace/cardi/energy, name it, he had it all. The only thing he really lacks both CW and HW is that one punch power or power as a whole, and i pretty much know the reason why is that, but don't want to make a debate of it, so will keep it for myself.
CW of course. Younger, faster, lighter on his feet, more fluid, better engine, accuracy, reaction times etc. The first AJ fight is the best he's looked at HW and he's not looked as good since then. Age has obviously taken its toll but that extra 10lbs or so also detracts from him too. 207-211lbs is his optimum fighting weight
Orange Juice. I think this is the mighty flavour where all the power/explosiveness for most come. While Usyk could still very well be on the Juice, as you never really know, but i think if someone is going to be clean, it's going to be him. His body transformation from CW to HW, and that his body literally always looks the same, and when he moved to HW, he didn't somehow gained 20lbs of muscle without any struggle, and still been as ripped as CW. He clearly gained some fat, and struggle with the weight, and took him some good years to get that weight. Also after AJ 1, his body physique is getting softer and softer. Gained some fat, and lost some muscles, as he is either the same weight or even a bit lower. He ain't as ripped as he was in AJ 1 for example, and no near close to as ripped as he was at CW. Another think that i clearly look is his head, and how it's stayed the same, and all of his body. His midsection aren't bloating as well. And most importantly, he still have all of his hair. Also the way how he fight, and the lack of huge power as well. I think if we had to say based on evidence and stuff we see, he could very well pass the eye test for being a clean athlete. Also he never failed a drug test, and had 350 amateur fights. He would have definitely messed up something on some occasion, as he was fighting super regularly. I think he is one of the clean athlete there is, and that's why he is such a gem. And this is coming from someone who thinks 99% are on the Juice. I like AJ a lot, but i'm 110% sure he is on the sweet stuff. You will never get that type of pop on your muscle being natural, just never.