Secret Destination The biggest advantage of Uber over Grab is the fact that its drivers are assigned to riders without knowing their destination. This becomes essential when you need to go to an unpopular drop off point such as the BIR RDO 45 in Marikina or Alabang. Since Grab drivers know beforehand where you're going, they will most likely not accept the ride, leaving you stranded. On the other hand, Uber is more service oriented in the sense that it will assign a driver to you as long as the destination is within its service area.