Haye will be in that divison next year and I guarentee it will be the full blown not the weight drained cruiserweight. A bit like Cotto at lw, WW he his a different animal.
Hatton would destroy Rees and Torres. Malignaggi would be a tougher fight but he won't make it to the 12th round like he did with Cotto, he'd be stopped late on. Witter would be the toughest fight at light welter, I'd even say Witter is capable of beating Hatton, not saying he will, but he has the tools to pull it off.