Curry was more skillful and powerful than Thurman but Thurman has testosterone unlike Curry. I don't rate curry as much as most of you. For me, Curry is fragile. I'll give Curry the benefit of the doubt in this case and say he wins via decision or late KO...but I can also easily see Thurman stopping him.
If Thurman can hurt him early with his long bombs he has a good shot to make Curry nervous and gunshy like Honeyghan did. If he can't things go south quick.
Curry was doubled over by a body shot and dropped hard by some Korean nobody. His best wins are over Starling who wasn't a big puncher.
Some really have to get over the Collazo thing, since it,s pretty obvious that it was a fluke. Thurman fought much better fighters and harder punchers, and was never hurt beside that.