I would say I look at Horsepower/Torque just for the sole reason of not buying too much bike. I need a daily rider and surprisingly my Laverda is fitting that right now. I also somewhat look at fuel mileage. As far as 0-60/quarter mile are concerned I look at them but they are not one of my reasons for choosing bike A over bike B. If I was looking for a track bike, different story. Handling is more of a concern than top end.
Just bought my third bike, anyone want to buy my car?