Anyone beats Wilder if they get into him early. The same can be said for one [very good] punch Wilder himself. The trouble is, it took Joshua 6 rounds to even get in close to Hellboy. He wouldn't be afforded that luxury v Wilder or Fury, probably gets away with it v Whyte just about.
The trouble is though, it's only really Joshua in this division who is fighting anyone [whether or not he is forced by his marketing team and Hearn] at the moment. The others keep bloody ducking. Wilder, he's got the punch and it's a hell of a punch but technically about as adept as Scott Lindsay or John Sheridan. Anyone could fight Wilder and keep their distance, dance around him like Eubank [Snr] used to and just score some points. Basically with Wilder you'll either get knocked out by his one trick pony or you'll win on points. Ironic nemesis for Wilder though really, has a killer punch but that's about it
People seem to forget Joshua actually took some solid hits against Vlad Klitschko including a knock down he got back up from and also poss from Whyte too
Fury, he's also been ducking and when he won't sign a contract or talk [business not posturing] then it's pretty difficult to get a fight sorted. Some will say he doesn't really have to.
Usyk would probably fight AJ again but that's not going to happen. They had their bouts and so he'd probably have to fight Wilder...but AJ is marked for that. Fury won't fight anyone so Usyk wouldn't get another go so that leaves Whyte but he likes his drugs too much so they'll never fight - plus what would really be the point as there would be nothng to fight for other than opening up a poss yet another fight with AJ or Wilder. Not going to happen.
The division is stagnating and it's kind of in a bit of disrepute atm. Whyte with getting continually caught, Fury not wanting to fight anyone, Joshua who seems to have mentally lost his genuine mojo and charisma [he either looks totally fucking drained after three rounds or has this faux charisma - it's different from what it was before.] and I think he's suffering mental burnout and he probably can't wait to get out of the whole environment. which is why he's keen to fight. Sometimes it's like he's saying to any boxer in the ring [regardless of ability], come on please just knock me out and end this shit for me. I think that's what happened with and where it started with Ruiz I, since then he's not been the same. Which only makes the sport weaker.
The only one in the division who kind of can stand proud is Usyk, but he's in a weird void of not really having anyone of particular note that he can fight with.
Boxing ey, stick 'em in a ring that's

a square, punchy punchy, wallopy knockout. Marvellous