Oscar DeLaHoya and Tito campaigned at 154, became champions at 154, became champions at 160 before taking on the best in the world at 160. But let's forget their far superior accomplishments at higher weights. Let's point out how these don't compare even at 147(like the other examples don't compare), Oscar and Tito had fought many good fighters at 147 and even great fighters. Fighters taller and with longer reach than the 5'9" Brook with a tiny 69" reach. Brook has the 5th or even 6th best American WW as his only significant fight. The only one.