Define "right" amount of water. There is no singular correct amount of water in a concrete mix. It is dependent on the properties you want, the materials you have available, how things are going that day, etc.
I'm sure if you have an easy form like a regular cylinder that you just have to fill from the top, then the sharp sand is stronger in an absolute sense.
It's when you have complex forms, logistics considerations on site, curing considerations like heat, using pretensioned steel rods, etc. Then you start to run into these workability tradeoffs and "strongest == best" is no longer true.
