Wilder gets a lot of his power fighting off the step. If you crowd him you take away a fair amount of its bite. His punching becomes good heavyweight punching in most every respect when he can't step into the shot. This becomes apparent when we see that moet of his KO's come from that right hand and then occur when he steps into the punch.
Fury should fluid movement and refusing to let Wilder "get set" can tame him, however when he can punch off that step he gets downright scary. Fury was a little sluggish in a few spots and he paid for it.
It'a awful hard to box on a tightrope for 36 full minutes, and it's awful likely that a human will make a couple mistakes at the elite level. When you take a B level guy at that level and put him in with one of the big three, you see how much the A's (Wilder, Fury, and Joshua) have above the rest. Ortiz is a weird A-/B+ but he also cheated a bunch so I don't know what to do with that besides lose respect for him.
Joshua gets a bit timid around guys that touch him up. Klitschko got right back into the fight and was on a trend to win, but Joshua got good advice at the veryate stages of the match and was urged to get inside and fight Klitscko. I don't know if Wilder's power will let Joshua make mistakes that he can learn from later. If Joshua fights Wilder and Wilder makes him feel some of that pain early, Joshua might go into hiding and give Wilder the space to punch.
Just something about Joshua's body language. He trash talks a guy in the ring, sticks his tongue out, but doesn't have alpha body language the way a guy like Canelo does, for example. I think Wilder has legir confidence in himself but I think Joshua has to convince himself more.