I used to just use windows media player (seriously) I never really gave a crap about it I would try Winamp and get fed up of bothering to download it, update it, find the necessary plugins and skins ect to get what I want. Plus the ID3 tag management in Windows Media Player wasn't all that bad so long as you knew what you were up to.

These days since I am using an ipod nano for my music I only use iTunes because it's what sync's my music to my ipod. Then once it's on my ipod it's played through proper speakers not the crap that comes built in to my laptop.