We are cabin people. I've stayed at most locations. My opinion for my family only.
If I were relying on the busses and I could afford a golf cart, I would do it. It saves a ton of travel time. If I could not afford a golf cart and could have a car there, I would.
For this trip, we have both -- a car and a golf cart (we are driving from home). We love parking right by our car, being able to get groceries easily, etc. We will take the boat to MK because parking is just as much of a pain. We will drive to all of the other locations. My husband is comfortable with navigating the parks. We may take the bus to the water park (my DH won't go, and we will leave him the car).
Overall, it is a style issue. I won't stay anywhere that isn't on the monorail for the marathon because of travel time. For a family vacation, the cabins are my favorite. It definitely gives us more family time (not sure why, but it is true). We decompress from everything. Plus, I love just meandering around the Fort. Love it.
Amy