Old Key West, Saratoga Springs and Fort Wilderness have very convenient parking.
Beach Club Villas also has parking very close to the building. Depending where your villa is, it could be a little hike to your room but it is not a very large resort so it's never too bad.
I agree with Sammie that the Polynesian has the best parking of the deluxe resorts. Oh, and CR too, I think although we have never stayed there.