No - hasn't beaten anyone great, yet. Could potentially be one of the greats of his time, but still needs bigger, better names. Pavlik, Williams, and Chavez Jr. (and Barker)(LMAO) aren't good enough (in my opinion).
Head to head he is a handful and would compete in any era. Unfortunately he is not an ATG, yet. HOF definitely.
5-7 years younger and he'd be on his way to that...but right now, he started in the Boxing game too late to seem to have a long enough career for those ATG moment and longevity at the top