XBox One vs Wii U, Wii U vs Vita: who will pass who first?

[st0pnsw0p]

Wii U rarely outsells Vita outside of the holidays, XBOne sells 40k+ more than either one on a weekly basis. I think there's a good chance that XBOne will outsell both by the time the year is over, whereas I'm not even sure if Wii U will ever outsell the Vita.