I think another thing that bothers some Nintendo fans, or me at least, is how easy Sony and Microsoft think the casual market is to please. People always rip on Wii Sports (Resort)and Wii Fit but those games are actually highly polished. Nintendo isn't just shoveling out these games from their B-teams. Motion controls are still being figured out and Sony & MS might just learn that the hard way.
In the end none of these control schemes will get it right and they'll all have their own little quirks. However I feel that only Nintendo is really going to be successful with motion this gen simply because they fully embrace it. Motion control is part of Nintendo's identity now, and currently Sony and Microsoft look like they just want to reach into the cookie jar too.
