i know they are a compromise, but i am 19 and i dont fell strong enough(joints…) to lift just with 3 reps.
So for maximum strength you would recommend 3-5-7 or 3-4-5 or sth like that.
I didn’t mean compromise in a bad way.
If this is the case with you (also, not sure about your background in weights) I would stick with a 4-6 reps range.
If you definitely want to choose between your two options, I would go with the first one in your case, I suppose.
Hope this suits you!
PS joint stability etc should be taken care of much earlier than the MxS phase -just a reminder…