Winamp has a lot more functionality than windows media player. Tons. Lossless audio formats, arcane audio formats, arcane video formats, plugins galore, equalizing that doesn't suck, a non-intrusive interface, and the list goes on.
For example - I load up an mp3, it reads the ID3 tag - find the genre, sets my equalizer to the setting to fit the song, pulses the three sets of colored LED lights on my laptop to beat with the music, and allows me to control my music from within counterstrike with my media buttons on my laptop case. When I go to bed at night, I set my winamp alarm clock and I get woken up in the morning by "Don't Worry, Be Happy".
Thats why winamp is so awesome.
Luckie wrote: