i use itunes for my mac...but i used to use foobar for my pc...vlc for os x video...media player classic for pc
like to use media player and real player and winamp oh and vlc cuz it can play most of the formats part from real player format.... and it can do alot of stuff that other player can not do...
WMP 11 to watch movies in [avi, wmv] Media Player Classic to watch series in [rm,rmvb] itunes to play my music files [mp3]
Wow absolutely nobody uses sonicstage~~ Well Im a sony fan so i gotta even tho its beginning to suk these days~~
I use WMP11 for songs and VLC media player for videos i cant seem to use anything else for songs and vlc player can seem to play a lot of different files without having to download a plugin
And there's also QuickTime Alternative too! http://www.free-codecs.com/QuickTime_Alternative_download.htm