I used to prefer Uber/Ola over the humble auto rickshaw [1] mainly because of two reasons: cars are safer; and an air-conditioned car helps avoid pollution from traffic (which is quite high in Bangalore). Now I prefer auto rickshaws (at least for short distances) because they are well ventilated due to its door-less design. The back seat of an auto rickshaw is constantly braving the elements (sunlight, dust and wind) and is likely to be more germ free in this context. To make it even better, now these autos have a transparent plastic screen between the driver and riders, thereby isolating them from each other while being open to the environment.
[1] https://en.wikipedia.org/wiki/Auto_rickshaw