Joshua is better than Wilder in a lot of ways. He's a decent pressure fighter with a good punch selection who can put his punches together well when gets some momentum. He's the more coordinated athlete, as well. While he's not the one shot puncher that Wilder is, he has genuine power in both hands. Joshua has a lot of things going for him in the matchup (which makes him the favourite in this fight in my mind, albeit not a considerable one), even if Wilder is going to be extremely dangerous.