You can have them fight at CW & may choose to use the @208 lb. Evander, since the limit expanded later. Then whatever you think is the best HW version of each. Both undersized for their time, Holy more so on the legs with more upper body mass. Quite marginal height & weight advantage for Usyk. As they were, so allow PEDs for him. They both are high volume punchers, but EH less so above @ 190 lbs. Holyfield likely more power, both great chins & boxing skills, & EH getting into brawls likely would not hurt him here.