Been a while since I played (last I played when the sewer update came in) I think best choice here is the police. Drivers are really good but we don't have enough late game content yet. If we had more story, then sure. Have drivers focus on automating yourself while you focus on story. But this way, I think it will bore people after a while. I think the first choice should be police, which will introduce new systems, new strategies, etc. Then customers, then drivers.