No brainer - Fury Wilder 3 was a beautiful war between two physically prime men hell bent on winning the war. Klit was like 45 against Joshua. It wasn't nearly as exciting either.
Not saying it was better than Fury Wilder 3 ( fantastic fight ) but Joshua v Klitschko was a brilliant battle that pretty much had everything
The problem with Fury Wilder 3 was that Wilder was finished about five rounds before the fight was stopped. The remainder was an impressive feat of endurance but he didn't really accomplish much boxing-wise. Those madcap early rounds might make it the winner though.
Hard to say. Fury vs Wilder III is surely more spectacular but Joshua vs Klitschko was of a much better level.