I tryied WMP and iTunes, but Foobar 2000 works some much better for me. It has everything I need, and if I need more, it's easy to install plugins and it's WAY lighter then the other players I tried.
I use itunes. I need it to copy songs in my ipod. I do not want to install another player when i'm pretty happy using itunes.
I am used many MP3 player. Like winamp, real player, and window media player. All of them good but one of my favorite is real player it is more effective than any other MP3 player. Real player have so many featurs. Winamp and window media player are also good and feel great. But i like real player the most.
WMP 11 is the best one ,and helium music manager with same user interface like itunes is also best one to enjoy the music