I like metal, hard rock etc, but I must admit that I prefer listening to easy listening when playing games because:
1) It isn't distracting
2) It makes me more focused/better
3) It's calming so I don't get angry when spawnkilled
4) It makes me forget the 20 second respawn time
Rather then the music I normally like to listen to while walking which is bad because
1) It's distracting
2) it makes me less focused/worse
3) It's stressing. It might be good, but not when repeatedly killed
4) at least the respawn time doesn't seem as long... that's a good thing.