A lot of games use motion controls, be it Wii, Kinect or otherwise, but for most of them, this control scheme seems forced. What are the games that benefited the most from using motion controls (as in, if they were to be controlled by a traditional controller, it would detract from the experience)? Having such examples could help one make the decision of whether those controls are beneficial for what they are developing
For example, Super Mario Galaxy is a great game, but its use of shaking the remote to jump is quite arbitrary and does not add to the experience. On the other hand, Flower uses sixaxis in such a way as to make it part of a great experience.
(I know this question borderlines Gaming SE, but their FAQ prohibits "Catalogues". I decided to put it on this SE, as having good examples of how to do things well is a valuable resource for anyone hoping to achieve similar greatness.)