I must say quantity... I am a wargamer and have thousands of soldiers, if I have to paint the smallest pouch of every one of them, I'll become insane
. Of course, past a certain degree is not worth quantity if the quality is too poor.
But for example, lately I am painting modern soldiers, just painting camo, flesh, weapon and boots as fast as I humanly can
and I am very happy with it. With ancient soldiers it's not the same in lots of cases, each soldier must have some "character" of it's own.