I'll have to go with my man Juan Manuel Lopez (admittedly with a little bias). Juanman has done nothing in his career thus far to cause doubts in the minds of boxing experts (a la Cotto's chin problems at 140). Though he has only fought tough, experienced veterans, he is soon to step up the competition and perhaps later in the year or early 2009 be ready for the big three at 122: de Leon, Vazquez, and Marquez.