Haye's HW career is one of the most cynical of all-time.

One could argue he's never beaten a single world class HW & that Monte Barrett is arguably he best HW he's beaten.

With his speed & elusiveness, he would have posed problems for both Joshua & Wilder, but I think he would have gone into his shell against both of them, although I would give him more of a chance versus Joshua who is slower & more predictable than Wilder.