Everyone is in their prime Alexander Povetkin, Ike Ibeabuchi, Tim Witherspoon, Riddick Bowe, Corrie Sanders, Michael Dokes How would Wilder and Joshua fair against this list of heavyweights
Wilder might win one through punchers chance, but likely loses all of them - he's so overrated for the level he actually proved he could win at it's not funny. Joshua does better, but probably doesn't win more than 2 or 3 - would be far more competitive than Wilder, having proved far more, but also has his limitations and wouldn't come out as king of the hill either.
Riddick Bowe would have absolutely cleaned out all those guys listed with him. Let alone AJ and Wilder. AJ has beaten Povetkin even if Povetkin might have been somewhat faded, Wilder has a genuine punchers chance as Povetkin is open to counters but Povetkin should really outbox him and find those glaring holes in Wilder's game.