PS4: 3 M
XB1: 2.5 M 1.8M
Wii U: 1M
3DS: 2M
Vita: 0.3M
I'm estimating Xbox One pretty high. They have a lot more exclusive/marketed games than Sony.
EDIT: Actaully, I'll change my Xbox One prediction from 2.5M to 1.8M.
"Never argue with stupid people. They will drag you down to their level and then beat you with experience."
-Samuel Clemens







