I have Current Speed, Elapsed time, Distance, Heart Rate and Cadence on my main screen. Screen 2 has Bearing, % Grade, ave and max speed just for grins. I like having the real time numbers and recorded data if I'm doing a training or hard effort type ride. On my commutes, I rarely record and dont wear the heart monitor, but like looking at speed from time to time if I feel like doing a sprint or see how fast I can get up a hill. If I'm going to do a long unsupported ride or brevet, I like to have the route entered and follow it so I don't get lost.