I have an iPhone, so some of these might not pop up on the droid, but most are usually for both droids and iPhones.
For radio I'd say:
Rdio
Rhapsody
Mog
Pandora
Slacker
When I had a droid, I loved PowerAmp. You could customize all the EQs, it was easy to use. I liked the setup and organization better.
Mixzing and WinAmp also arent bad.