I'm using ball type powder for 9 mm loads. It is much easier to get them to work well with most powder measures. I have used other powders. Since I do load on a progressive press, weighing each charge is a pain. If I were to go back to a single stage, I might change my mind on the powder I use.
Once you get a load you are really happy with, I suggest buying components in bulk. Normally this helps to get your cost per round lower.