You're overlooking a man known as 'El Radar', who, despite not being as dedicated as he was at 140 and (for the most part) 147, is one of the most gifted fighters to ever lace up a glove.
Look at my post to gauge how close I think it is. There's no disgrace in a majority pickfor Benitez though, it's a damn close matchup. Ask 100 people and I bet it'd average out
At 147 maybe, but this at 154 where his best win was over a past prime Duran who had looked poor against Nino Gonzalez, Luigi Minchillo
and who got outboxed by Laing and knocked out by Hearns.
Benitez reach 178cm
McCallum's reach 198cm
McCallum had an excellent jab that he could close the distance with and step in behind go to the body.