Who would become great if u give them a chin or Power, Can't give them both. exm: Wald- already great but would be undefeated with a good chin Paulie- He has good skills, would have beat Cotto and Hatton with beter power Holt- I think he's one of the strogest punchers. His lack of aggressiveness keeps him B level fighter. With a good chin he might take more risk.
amir khan. great hand speed, great heart, good punch power and good developing skill. just lacks the chin