I have read several posts from people saying they prefer rental cars over the Disney bus transportation because it's faster than the buses. We debate over whether or not to rent a car on every trip. We did rent a car a couple of times but then wound up leaving it sit in the parking lot pretty much most of the time because we were kind of leary about dealing with all the traffic coming back to the resort at the end of the day. Isn't it more difficult to get back to the resort when the parks close driving yourself than it is on the buses??