Obvioulsy both used alot of juice and had great gentics, and this contribited more than anything else to their gains. I prefer niether style, both had strengths and weaknesses. Menzer was probably correct in that intensity without huge amounts of volume is very effective for stimuating growth and allowing for very rapid recovery, however anywho who looks at research done on muscle growth would believe that it takes an entire week for a muscle to recover and grow. The growth process rarely lasts more than 48 hours after a workout, and by the end of the week, you have actually lost a little size due to detraining. Sorry if that strikes a nerve, but it is what modern science (and Menzer did advocate ALWAYS taking a logical and scientific approach to training) has now shown. Arnold was grossly overtraining with 25 sets for a muscle group, but I think tons of d-bol and his genetics allowed for him to recover from this. His belief in training a body part 3 times a week is dead on, if one could find a way to recover from the insane volume he advocated. Looking at his arms, clearly he found a way.