I REALLY prefer driving. Even when Disney transportation is running quickly and smoothly, it is not a fun experience. You have to cram in, and wait in lines, and listen to marketing spiels. It's generally fine on the way to the park, but at the end of a day it is a nightmare. It rarely DOES run quickly/smoothly. Our car, however, is always comfortable, temperature controlled, we can listen to whatever we like, and we never have to squish up next to a stranger, feel compelled to give up our seat, or wait for multiple buses.
Sometimes we want to drink and not worry about driving, so we use Uber!