Both of the Klitschko's technical games are overrated as ****. Neither were technical geniuses, they just had good fundamentals. Neither are up there as the most technically skilled heavyweights. Holyfield, Tyson and Louis are the top three IMO. Unless you're including former lower weight fighters who moved up, like Charles, Moore, Spinks, and Toney. Usyk is well on his way there IMO. He's already one of the best (top ten) IMO, but I want him to accomplish something more tangible while being a heavyweight before putting him on that pedestal
"Most technically heavyweight?" Andy Ruiz Tony Galento Buster Douglas (for the Holyfield fight) Chris Arreola Insert your fat joke here.
Holyfield James Toney Larry Holmes Tony Tubbs Prime Tyson Wlad K Lennox Lewis Tyson Fury Archie Moore Ezzard Charles Joe Louis Joe Walcott Chris Byrd The most technical modern heavyweight is actually Holyfield when he didn't slug it out like a maniac. He was a complete all rounder.
Sonny Liston was suprisingly very skilled and technically very good. According to boxing historian like Monte Cox, If you watch his fights when he was at his best (circa 1985 against Cleveland williams) ,He used beautiful head movement and what may be the division’s greatest ever jab to avoid most of Williams’ punches and to keep him off balance. Williams does occasionally land with extraordinarily powerful shots, but Sonny shakes each one off. In their combined five rounds of boxing over the course of their two fights, Liston is only shaken briefly once, and never in danger of being dropped. The most astounding thing about his approach is that he is equally comfortable coming forward or retreating—which he does whenever he feels pressured. This runs entirely contrary to the perceived wisdom about Sonny Liston. Although he was a finisher of comparable stature to Dempsey, Louis, Marciano, and Frazier, he was the only member of this shark-like group who was a boxing conservative. Even past his prime in his fight with Patterson, you can see that he was more than a puncher or a slugger like foreman was. while the fights were blow outs, Liston did not come out swinging wildly like George. He took Floyd apart methodically, setting his man up with left jabs and solid body shots. Sonny showed fast hands, using an accurate left jab, along with hooks and uppercuts. He had a definite game plan and executed it perfectly.