i think this is majoring in the minors. the day to day stuff kills most people when they really need to pay attention to the week to week or month to month work loads.
1 set or 10 sets, or everyday workouts or 1 day a week workouts can all give you the same workload over a span of a month. remember intensity, frequency, and volume are all related and help to make up a workload. you adjust one and the others need to be adjusted which balances out in the long run.
do one of them, do it hard, rest hard, eat hard, believe in it, enjoy the gains. do it for several months. then switch to the other, i bet you will see gains as long as you work as hard, eat as hard, rest as hard, and believe in it. after a few months switch back, i bet you will see gains. the point is, they all work if you work the programs.