Noticed that the Album Artist category just throws anything that lacks an Album Artist tag into an "Unknown" folder... It would be really helpful for Poweramp to just automatically read over the Artist tag if no Album Artist tag is present, like many other players do. This way, it would be easy to just use the Album Artist category without having to flip back and forth between it and the normal Artist category.
After all, for albums that only have one artist name, it would be rather tedious to go through and add Album Artist tags for every single one.