Music App for Audio Files
Although people say Apple practically reigns as the maker of the "best" portable music players, I have to disagree with this. Theirs may look great with all the nice icons and stainless steel or shiny plastic cases, but the native music app sucks! The equalizer doesn't really work as well, and they refuse to sell other apps that will compete with theirs. So this is where Android phones come in.
What music apps do you have on your Android phones.
For me, hands down, its WinAmp