Ward vs GGG is a mismatch. Ggg vs cotto also a mismatch. Yes ward deserves to be a ppv star so why dont he step it up and move to 175 and clean it because he has the capacity to do so. Ggg will be doing fine without ward, so is cotto without ggg. Ward is the one needing something here.
Honestly, I find GGG to be an unknown quantity. There is no way I see him having a chance against Ward at this point. Cotto would have to contend with some big physical disadvantages, and GGG does seem to carry top-level power. I'd have to favour GGG against Cotto, but I've went against Cotto several times before and he's proved me wrong.