Typically alternative. For me, it's got the best beat and intensity to get me pumped and motivated to workout. Maybe once I'm used to jogging most of it I'll read or something during my workout but for now...I need the loud music.
My parents bought the one we have. I'm not sure what I'll do when I eventually move out...probably get a gym membership to a place that also offers racquetball.
That's my favorite workout.