Usyk without a shadow of a doubt. All done against much much larger, big punching beasts in their backyards. Against all odds. It's like the equivalent of Inoue moving up to ****ing Welterweight or something. Also Usyk is just simply the more talented fighter. His ring IQ is very special, a true Boxing master.
Kellerman and co. spoke about this recently. Max, in his explanation for why he still had Usyk number #1, spoke about the percentage of a fighter's weight, which was good. It helps explain why, say, Chocolatito going from 105 lbs. to 115 lbs. is more impressive than many would assume. However. There's a caveat here. One he failed to factor in. There comes a point when size and weight become net negatives. Before Usyk whupped Fury, there was a hardening consensus that the best man is generally the biggest, or near enough. Usyk reminded us that speed and stamina - and the superior technique a 6'3" build can enjoy - is a more powerful combination than a clever and gusty big man. And so the Fury win - which I do rate highly - is not quite the earth-shattering victory Max insinuates. The HW champ will never be 300/400 lbs. Gravity will always intervene.