Personally I don't think the Wii is even in the console war, only the PS3 and 360 can compete with each other in the war as they are really similar consoles.
The Wii is out there in a different league of its own as it is a completely different console and this is what Nintendo wanted which is why they sell so much, Nintendo concentrates on games where the others concentrate on being a better media centre and a games console at the same time.
Wii is better because of the motion sensitive controller. The PS3 and XBOX 360 does not do that
Yes it does, the PS3 controller has motion too.