reservoirdogs
Superstar
Wilder uses his reach well to set up his killshot but he isn't that great at keeping opponents at bay. If dudes like Szpilka could land on him so would Shavers.Don't think Wilder could take a blow from Shavers but Wilder could win if he uses his reach.
Shavers was different in his power too, like he didn't have one specific shot which was extremely powerful, he was just a huge ass puncher all around even when he was on the inside, he didn't need momentum like Wilder. I don't say that either is better or worse just different. Shavers more straight up too, usually ended his rounds in the early stages of the fights even against sterner opposition unlike Wilder who usually takes his better opponents to the later rounds.
Shavers could also go to the body quite well if he could get to that distance. It would be harder for Shavers to punch so much upwards though with Wilder being 7 inches taller than him. But if he could get on the inside that would turn to his advantage cause he was about the same weight as Wilder now. Wilder probably has the better chin but imo none of them could take the others' best shot.
I guess it would depend who can land his shot first. I'm picking Shavers but if Wilder starts fast it could be him too if he catches Shavers coming in with a straight right down the pipe.