Ooh, Pops or Pearl Jam. That's tough what with the cross genre and all. The Pops did some really cool stuff when that one guy was the conductor. Pearl Jam always has a good sound, but they don't vary the sound much, if you've got one album you've got them all (they did a great imitation of Crazy Horse working with Neil Young though). I'll have to go with PJ though. When push comes to shove grunge rock is just more fun than light classical.