BTW, the price for the Wii hasnt be annouced from Nintendo yet, people who believe that the console is going to be $199 are expecting too much from Nintendo, if Nintendo were set on releasing all there consoles for the same price, they would of mentioned the price at E3. They didnt because its not that simple anymore, next gen gaming consoles are not just about gaming anymore. Nintendo's consoles were cheap because they were all about gaming, the Wii isnt this time. With the whole motion sensor, emulation and other media players that have been put into the Wii, Nintendo are taking a big risk releasing it at $199. The only way they could get themselves a profit is if there sure that lots of people will buy there software, if they only manage selling the amount of consoles that they did with the GC, expect Nintendo's doors to close very soon.
Lets face it, PS2 outsold the GC and Xbox. Most people have been accustomed to there games, so yeah, they wont want to play Nintendo games, so why would they buy there console ?
As with graphics, graphics do mean alot, so thats on PS3's side.
I also wouldnt get your hopes up about the controller, motion sensor has been done long ago. And it hasnt always been successful, most motion sensor games were frankly crap. Nintendo want all there titles to be using the motion sensor function. I believe that Nintendo can produce some quality titles, but I think there is going to be a heap of really poor, bad titles. If you read all opinions on the people playing Wii games at E3, not all are positive. I think Nintendo have definately worked hard on the new controller, so it will play better then motion sensor games before it.