Fury is just a huge guy, who is fearless, has a big heart and doesn't bottle it. He is not technically that great and he is not a one punch KO artist. Klitschko is by far the technically superior athlete but he lacks bottle, Fury was always going to trouble Klitschko as I said before that fight.
Joshua would KO Fury tomorrow because Fury poses very little risk to AJ. I don't think Fury has the chin that Whyte showed tonight neither would Fury wobble Joshua imo. It's all about styles and Haye/Wilder would be much riskier fights at this point in time for AJ because they have power.
Personally I'd love to see a rematch or maybe see AJ take on Chisora next because he also has a good chin and will not roll over. Joshua needs fights that will allow him to get rounds under his belts like today but at the same time, he'd have little trouble against Fury imo.