^^lolz man I hav been a hardcore windows user (pirate).
I have tried a myriad of players before saying that.
IMO KMplayer, VLC and GOM comes in same category. Its just a matter of personal preference to choose any of the above.
I myself prefer jetaudio but now am on linux for most of the times, so totem rocks there and Mplayer is for some weird rare formats.
Foobar is awesome, music is always at its best in undistorted form (all those bass plugins and other DFX kinda things destroys the natural feel).
Btw do check Hydrogenaudio forum to know what foobar can do and how much it can be customized