I think it'll be close, within 5k of each other, but that the Wii U will clinch it.
I can't see WD giving a boost to the PS4 of >20k, call that 130k
I can see MK giving a boost of ~400%, call that 140k
Essentially I see them both being with the range of 130-140K for this week, with whoever winning having a relatively narrow margin.
Week after I think we may see Wii U >175K







