The Wii is on it's slow down-ward spiral IMO.
It will remain this generation's winner easily however but it's at a cross-roads now where Sony and MS are reaching financially viable mass market pricing as well as peripherals that make use of motion controls. What makes a Wii more appealing than a full-fledged motion control line-up of Kinect or Move? In my eyes, not a ton. Not anymore atleast.
This doesn't mean that the Wii won't outsell either the PS3/360 this holiday season but I don't think it will be a clear cut huge victory and I would not be slightly surprised to see the Wii hit 2nd or even 3rd place this holiday season. The other systems have stronger libraries coming out this holiday season, lower prices , more features out of the box and their own motion controls.
