Think it was POB who did a thread sometime back...

In that thread I said Cotto needed to fight anyone of these guys;
Soto-Karass, Hlatswayo, Sasaki (really far fetched) or Lujan.

In that same thread I said more then anything Cotto needs a confidence booster. He needs to be faced with the perfect opponent that can last with him and he can get his confidence back with.

I don't think he needs a Berto fight as a comeback fight.