What game has the best motion controls?

[Darashiva]

I find them to be an unwanted gimmick most of the time, but there have been some games that do motion controls well. Games like Wii Sports, Red Steel 2 and a few others where they are essential to the gameplay it makes sense to use them, but too often they are just a tacked on nuisance that for me personally just detracts from the experience.