I would say with a bullet. Undisputed cruiser and unified heavyweight Champ in 19 fights, doing it all in the other guys hometowns, without a single controversial fight, or even having to get up from a knockdown. Based on his level of competition and demonstrated ability beating them, I would say he would be pretty first-tier.
My very good friend...I am going to disagree on that one. I picked Usyk to win the first, and I sure am not changing horses now.
As a Cruiser yes. Absolutely. As a heavy, no. Not if he retired today. Winning a title and never defending it is a bad look. It's not as bad a Roy Jones' cherry picked heavyweight title since Usyk actually has some wins at heavy and won the belt from a legit threat of a belt holder, but I think he needs to actually defend the title to make heavyweight ATG.
He didn't need heavyweight to be an ATG - he was clearly an ATG at cruiser already. Even if he's not 100% in the rematch and somehow gets sparked, he's still an ATG (and not that it matters, AJ's record is such that it wouldn't be a disgrace to go 1-1 with him).
Of course he is not defending it today, but your points are actually pointless, lets judge the man when he does retire and then compare him, i suspect he will do far better than most would expect, including many successful defences of the HW title.
But there was nothing at all irrational about the question, and as of now, he is winning the poll handily.