either way you put it Calderon was considered #1 at 108 before his loss, and at that time there were still fighters such as Omar Nino Romero, Ulises Solis, Brian Viloria, Hugo Cazares, Rodel Mayol, Nelson Dieppa, and well the only guy to beat Calderon in Giovani Segura

plenty of recognizable names so to be considered the best fighter of the bunch well it has to stand for something, especially when you were considered it for nearly a decade (cause yes even when he was just at 105 Calderon was still ranked #1 at both by Ring and ESPN), lets not forget his age while doing all of this either, Malignaggi fights at a higher weight (32 lbs north) is 30 (6 years younger than Calderon) and yet still doesn't have the ability to deal with guys his own size, on the other hand Calderon who started his career later than most has been dominating guys that tower over him, for that very reason i say if Calderon would have had the frame of a lightweight or welterweight he would have had just as much success cause when it comes to defense and technical ability he's on the same level as guys like Mayweather, Whitaker, etc.