Ended Vlads long unbeaten run of dominance in his own back yard
Beat Wilder twice, very dominant the second time, again in the home country of his opponent.
Beats AJ (hypotheticaly)
I know some people dont rate this era of heavyweights but that would have to put him up there. Maybe if he cleaned out Usyk and an up and comer future champion like Dubois t would add some extra shine before retirement.
If he beats Joshua, history will look like this
Late 90’s- Early 00’s - Lewis era
Late 00’s to Mid 10’s - Klitschko/Wlad era
Mid 10’s - Mid 20’s - Fury era