Would definitely be Bill Harris, if there was such a contest.
A week ago his young 6 year old son, Eli, was home from school and mentioned that he wished he had a "big adventure" to go on. They had been playing a lot with pirates lately and that gave Bill an idea.
You can read about the masterful adventure Bill has planned for his boy right here. And if that isn't the coolest thing I've ever heard of a father doing with his boy, then I don't know what is.