Hes in the top 30 At the end of the day the size gives him a big head start when you talk about him vs a lot of the older heavyweights pre 1970 He has enough skill and power to beat most of the previous champions Resume and accomplishment wise it might be a different story
h2h will take into account his size and strength. guys of this era are used to it, and often a similar size. Go back a bit though and AJ is an absolute colossus, which would help him beat plenty of guys that he is less skilled than. which is maybe why h2h rankings are a dumb way to compare eras.
He may well be top 20 H2H due to the combination of size + athleticism + power + decent skill. Getting to 22-0, 21 KO's with wins over Wlad, Povetkin, Whyte and Parker was a very good run.