iTunes slows down my computer, but it's the easiest and (somewhat more reliable) way of syncing my iPod touch. iTunes must also be present for the Spirit Jailbreak to work, so that's why.
I use Windows Media Player, I just find that it's really lightweight and easy to use. I don't use the library function, I have my audio files sorted into folders and I just ctrl+a the artist I feel like listening to at the time and WMP plays them all. :D
I use iTunes, since it has all my music on it already. I'm honestly not really a fan of iTunes, but it's convenient. I do love using Windows Media Player from time to time though.
well i cant vote so i choose VLC MEDIA Player (altho it is not in this threadt vlc is the best )