We stay in the Fort Wilderness campsites, but I think the answer should be the same. . . We like to drive to the parks. We like to get there for rope drop and it's easier for us to time it right if we're driving. I have taken the buses when we've left the parks at different times or if I'm going with just one of the kids and leaving the car with DH, and while the buses aren't as quick as driving, they're usually pretty reliable. But sometimes they're crowded and you have to stand or, even worse, wait another 20 minutes or so for the next bus. Also, on the way home the buses always stop at Wilderness Lodge first, which adds a little bit of time to the trip. The only park to which it might be quicker to take Disney transportation is the Magic Kingdom (by boat), but we usually drive there, too.