year to date
PS4 - 639.352
Wii U - 311.963
we have media create threads. you should check them
That was before Splatoon, early 2015 the PS4 was doubling/trippling the WiiUs pathetic baseline (plus the Playstation Jan/Feb bump). They've been neck and neck otherwise except Batman bump.
By EoY we really have a blank box because a lot of variables have been introduced by Splatoon, and also the growing marketting of SMM. PS4 will still have the higher YTD, probably, but where things end up isn't quite known.