Usyk is smaller than Ali, Holmes, Foreman etc. The dimensions are similar but they fill out much more while Usyk has noticeable fat specially in the middle. And lets not forget he was an alltime cruiser as well. Fury and Lennox are the only true modern "giant" HWs where their size advantage would be a deciding factor against some past greats but even they have their issues. Fury almost got KOd by Cunningham and we know about Lennox chin. Joshua was supposed to be one of the bigger, powerful HWs. Too big for past smaller HWs that would be "CWs" in todays era. Well he just got his ass lit up by a CW who doesnt have a fraction of the power of those greats.