He could beat the much smaller fighters like Pep, Sanchez, Nelson, Saddler, and Gomez. It would be a shame if a 6'3 welterweight (who enters the ring at like 160) with an 82 inch reach couldn't beat a 5'5 featherweight.
Why do you have career featherweights the discussion?
Anyway, he has no shot against all of the WW's except Benitez...I think he could have a shot at outworking him to a decision.