When or if they fight,the advantage goes to Haye.Wilders lack of fighting top guys will be his undoing,haye already has the experience he doesn't need to improve, Wilder has severe holes in hios game that the crafty Haye would exploit. I think it would actually go like their sparring session years back when Haye was knocking him around the ring and clowning him,but a tougher fight this time with actual k.o punches being thrown.
Judging from the Szpilka fight, wherein Wilder struggled with head and upper body movement which allowed Szpilka to close the gap, I'm leaning towards Haye. That is his bread and butter, and he can seriously punch. Wilder would have to keep him at range and uncork the right hands - but Haye can deal with those sort of tactics quite well. He would likely be waiting for Wilder to throw something wild or sloppy and then counter with his haymakers. Haye has been a joke recently, but people forget that he can really fight when he is on top form. I was gutted when the Fury match was cancelled as I think that was a very intriguing prospect, at a time when we didn't know THAT much about Tyson. I would welcome him back into the heavyweight mix if fought someone legit to validate his place. Haye vs Parker would be a great showdown/shootout.