Soto Karass more than doubled Berto in punches thrown and landed 10 more per round. Berto's more accurate and hits harder. This could be a sluggest: Berto's opponents (Guerrero, Zaveck & Ortiz) landed 42% of their power punches, while Karass' opponents (Aydin, Maidana, El Harrak & Rosado) landed 45% of their power shots. 30 of their combined 38 landed punches per round (79%) were power shots.