Jose Luis Castillo underrated
I feel JLC is not getting the deserved love these days.
In his prime he was tough as nails and much more skilled than ever given credit for.
This guy had an excellent run, gave hell to Mayweather and Casamayor (and should have really been winning the fight of the decade, when taking away fouling, but who cares they basically both won that fight).
Also probably the best inside fighter of the lower weights after his mentor.