Yes of course you can argue that. The big one with Fury is the 2 Wilder fights and he beat a slightly younger Klitshko comfortably.
Plus he hasnt got a very bad stoppage defeat on his record.
Joshua did start boxing later than Fury so there is the potential he can improve again where Fury the way hes lived his life could find that catches up with him.
As it stands I think the best Fury weve seen deals with the best Joshua weve seen.