Oleksandr Khyzniak. The guy is an absolute beast in the amateurs. After he collects his Olympic gold medal I am hoping he teams up with Papachenko and turns pro. From what I have seen he has good speed and power in his punches. His punch placement and combination punching is definitely his greatest attribute (reminds me of Canelo). The guy has super star potential due to his boxing style as well.
Stevenson is the best on the list but he will be in jail before hes 30 so he better get moving before then
Some many young guys in and around 135 these days. 135/140 is going to be a lot of fun over the next few years.
Joseph Adorno Arslanbek Makmudov - not a star but he will rule the division Those are my top guys at the moment