Well, I'm glad this thread hasn't 'gone South' yet...

Actually, I'm a little surprised at how few are even willing to admit ANY prejudice in their musical tastes. Kudos, everybody!
For myself, I only tend to be prejudiced away from playing musics I can't do well. It doesn't mean I don't LIKE them, it's just that, if I can't bring anything to the party, I'd rather not come. Bebop tempo races are beyond me, I find it hard to be creative for more than a couple of blues tunes in a row, hiphop and rap aren't what I call 'player's music', although listen-able (at least, some of it!), it's more of a loop jockey's job than a keyboard player's...
But I'm glad that things are more open minded 'round here than I thought!