Amarok vs Winamp
From WikiVS, the open comparison website
Winamp runs on MS Windows natively. In the late 1990s and early 2000s, it was one of the most popular and most feature-rich players on MS Windows. However, since those days quite a few other players have gained market share, including Apple's iTunes and Microsoft's Windows Media Player.
Amarok runs on Linux. A port for Windows is in development. Amarok is one of most popular players on Linux.