Vita. Japan is it's ace in the hole.

http://gamrconnect.vgchartz.com/thread.php?id=173560&page=1

Betting on Wii U.

As ludicrous and baseless as the Wii U's supposed system sellers have been, lets be serious here, Nintendo would have to fuck up MK8's marketing horrendously to still get out-eco'd by the Vita.

I'm going with the Wii U.

Wii U, because US

Vita is Down YoY though and WiiU had the worst gaming year. 2014 has lots of big titles for WiiU. Even though i believe vita will make it first, saying its an easy decision is a little farfetch. Both are doing terrible and vita had a year headstart. WiiU should be up over vita this year with the remaining 5 weeks

I realize that WiiU's first year was a joke (a bad one) but I don't foresee a scenario where it doesn't reach 10m before the Vita.

WiiU already has a couple of things scheduled for next year that will help to boost sales of the console, to say nothing of E3 surprises and holiday software.

On the other hand I don't know what software could really boost sales of the Vita. Maybe PS4 interactivity? Vita TV in the west? I just don't see it.

In short, I think the WiiU's worst sales are behind it whereas I believe Vita's will continue.

Why Criminal Girls 2 of course!!

The Vita has been on the market longer than the Wii U, so wouldn't it be more fair to ask, which one will hit the 10 million mark in the shortest number of weeks?

I wasn't expecting either to hit 10 milly. Hmmmm ... me needs to thinks over these much.