I think he would do ok at HW, he is more in the vein of Dos Santos or Cain in so much as he is fast and smaller, than some of the old monsters, at LHW to be fair he probably would be fair tasty as well, HW though is less talent filled than LHW so he might have a slightly easier time there - him v Reem would be interesting - granted Reems kicks would be an issue, but as a stand and bang fight, after seeing what Werdum did to Reem with a jab, Haye could be interesting as an opponent (getting a bit ahead of myself here to be fair haha).