Precision over power every time. Power without good precision wont work once you start fighting elite fighters - well, most of them anyway - but precision can work fine without any serious power for accumulation damage or a pts win. Aswell as Louis & Arguello, there were a few others that were blessed with both to an extremely high level...... Robinson, Tyson, Duran (even tho he looked ragged by his body movements his shots were very precise) & Naseem Hamed in his early 20s.
Precision is more important than raw power, a precise puncher will waste less energy than someone who swings for the fences and misses alot and he will also do more damage when he lands even if he is not known for packing a wallop. Joey Archer for example who was by no means a puncher managed to buckle Dick Tiger`s knees and rock him badly with a well-timed right cross, and he even managed to dump Ray Robinson onto the seat of his pants courtesy of a right hand as well. Alberto Davila did the same to Frankie Duarte in their first go, and he also rocked the iron chinned Lupe Pintor in their rematch. In all these instances it was the precision and timing of the punches that caused the damage they did, not the raw power of the opponent as they were not known as punchers to begin with. Now if you have a fighter with great precision and pinpoint accuracy and give him a knockout punch, good chin and fighting spirit you have yourself one heck of a fighter.... too bad we don`t have anyone around like that today.