With CBR being my choice of on-property stay, I will have to say that I've never had a problem with transportation.
We rent a car to drive down (from Mobile, Alabama), but once there, the car sits in the parking lot until we leave to head home. The only time I ever had a complaint was
leaving Epcot one night my last trip (Oct 2001), and that was mainly due to being tired and wanting to get off my feet. The bus was a little late, but nothing to be upset about.
But then I thought about it, and realized, well I could be trying to remember where the car was, having to work my way out of the parking lot, get back to the resort, find my set of buildings, park, etc.....or, walk a little bit, and wait for a bus to take me there.
As far as "touring" CBR, this all depends on where the bus enters\exits the resort. There's more than one way in\out, and it also depends on the
island you're staying at. You could be the first stop, or you could be the last, or somewhere in between.
Anyway, I would say go with the WDW transportation. But thats my opinion.
