Which mineral make-up is better?

I am really indecisive with make up and I am looking for a new mineral powder. I am using Loreal's Infallible liquid foundation and really like it but I am not sure whether to get the True Match natural mineral powder or use Almay's wake up powder, or Revlon Aqua make-up. I have oily skin so I want to get people's opinions about what powder (or powder foundation) is better before I buy it. Does anyone have any suggestions? Or maybe something that's not from a drug store..?Thanks!