Prime Wlad would win, either on points or late stoppage. Early 2000's Wlad might lose and 2014 and later Wlad would lose I figure.
Usyk makes him quit. Early aggressive pre Steward Wlad is easy pickings. Sanders landed every left cross he threw at him. Steward trained Wlad that stayed up right, and stepped back and sideways was better but would still get outboxed by Usyk because he was way too conservative with his punches. Usyk would not be as gun shy as his scared opponents and would unload on him later on in the fight. Usyk beats any version, way more versatile.
Wlad and AJ are two of the biggest hypejobs since Mike Tyson Wlad is way too predictable to beat Usyk Let's face it he made a career knocking over glorified midgets and got chinned by one.
Wlad perfected his style of using every physical advantage. Whilst none of the people who beat The younger Wlad were really any bigger than Usyk, I'm not sure they'd have repeated the trick later in his career. Sanders is obviously the best comparison, as he destroyed Wlad with timing and speed rather than aggression. I dunno man, the longer I type this post the more i change my mind. Screw it, I'll decide when Usyk has retired.
Knee jerk response would be Wlad, though Usyk clearly can hang with men much larger than himself. A general route to victory against someone who's mastered and relies on the basics is to unlock them with timing, accuracy, movement, and high output to force mistakes, disrupt rhythm, and pull them out of their comfort zone. That sounds like how you'd describe Usyk. Wlad definitely has the power to put him out but I don't think Usyk let's him set his feet to do so. Close decision depending on who manages to establish their plan. So I'm inclined to think it's a 50:50 fight.
Usyk dances around the static Wlad and gets past his legendary jab shield. He wins by unanimous decision.
I think Wlad doesn't like Usyk, because he didn't post any support messages for his countryman Usyk against Joshua in his Twitter account.