AJ is the better boxer and has the pedigree behind him of boxing at a higher level being an Olympic champion. AJ can fight when he needs to and is slowly getting the experience to become a champion for a long time. He can carry on where Wlad left off.

AJ has been near flawless in becoming champion and the only time he has been hurt has been against respectable opponents in Whyte and Wlad. Wilder is bambi on ice and looked fragile. If AJ lands Wilder will be knocked out cold whereas I think AJ could come back if he is hurt, so I would say AJ has a slightly better chin.