One last plug for Mayol
6 of his last 8 fights were stoppage wins and he had a knockdown in the one full decision (the other dec was TD due to a head but). In that span he stopped Genki Ohnaka and Ernesto Rubillar - both pretty tough customers. He's only 23.
Calderon is good but he is already 30 and needs to get out of this hemisphere. It would be interesting to see how he fairs against some of the harder punching Asians.