I haven't been closely tracking this lately, but I remember about a month ago Wii U was confirmed overtracked on VGC. Nintendo announced they shipped like 10.5M as of September 30 I think, which meant VGC numbers had to be off. There may have been some adjustments since then though.
Edit: Looked it up. 10.73M shipped as of September 30, so looks like Wii U is probably still overtracked here.







