I think Duran would have manhandled JCC, JCC had good technique, and he didn't like to be out macho'ed, and Duran could do more in the ring, he could box better on the outside, and he could get right on the inside like he did against Leonard in their first meeting and smother you power, but still get leverage on his punches.

When I say DUran would manhandle JCC, I don't think he would have dominated him, but he would have physically controlled the fight, and JCC would be on the ropes a lot, and I don't think he would have faired well.