which is the training, number of sets and repetitions that you think is best for a hypertrophy training?
There isn't a single answer to this for all individuals.
Assuming your rest and nutrition are on point, there are three variables which matter:
Intensity (as in % of one-rep max)
Volume (# of sets and reps)
Frequency (how often you repeat the routine)
Increasing one variable will mean decreasing one or both of the others.
The research and lots of anecdotal evidence points to a frequency of 2-3 times/week being optimal from a hypertrophy standpoint.
I know that I started BB'ing in the 1990's and everyone was advocating high intensity, moderate to low volume, once per week workouts. So that is exactly what I did, for years. And my results were spectacularly mediocre. When I switched to training everything twice/week my body practically exploded.
That doesn't mean that there aren't people out there who will thrive on once/week training. And I am certainly not saying that you are wrong if you choose to train that way. If you are getting the results you want, then by all means, stick with what is working for you.
But there is a reason that virtually every recent routine (HST, Phil's system, DC, etc.) has incorporated a higher frequency approach - and that is because it produces results. We know that 48 hours post-training protein synthesis rates are essentially back to baseline in a trained muscle. And we know that muscular contraction upregulates androgen receptors for a brief period. The data is out there and it is conclusively in favor of higher frequency.