Most "promising" fighter who never really blossomed?

[antimoron]

how about overweight Guzman.. the one who breaks scale limit... more on talking but can't walk the walk..

[X]

I really dont agree with people who talk about people like Mark Breland and (bloody hell!) Don Curry. World class performares who won 'world' titles.

How about:

Duane Bobick
Howard Davis Jr
Gerry Cooney
Michael Grant
Jorge Gonzales