With slow sales for the Wii U and a VERY hyped launch for PS4 and Xbox 1, it seems like the Wii U will be doomed for last. Then again, the market isn't always predictable, so anything can technically happen.

What are your predictions for if/when the PS4 and Xbox 1 will pass the Wii U in sales?

I'll make a list of users and you all can make bets if you want.

PS4 will pass Wii U at:

November 29th, 2013 - osed125 

December 31st, 2013 - sidious164

April 31st, 2014 - Madword

December 31st, 2014 - KingofTrolls

XBOne will pass Wii U at:

November 30th, 2013 - osed125

December 31st, 2013 - sidious164

November 31st, 2014 - Madword

December 31st, 2014 - KingofTrolls

PS4 will never pass Wii U:

XBOne will never pass Wii U:

Neither console will pass Wii U:

Anfebious

PS4: day 1

XBone: week 1

Never.

by the end of the year

No prediction other than they wont outsell it this year.

Ps4 is suppose to sell 5m by March. WiiU is at what about 3.5m at this moment? WiiU will likely be around 6-7m by the end of 2013. Both PS4 and X1 will be around 2-4m by the end of 2013.  Even so, WiiU only has to sell 1.5m more to equal Sony's numbers by this march if they sell all units.

So in other words, unless you expect PS4 not to have a single console on shelves from January to March then it isnt going to outsell WiiU by the end of 2013

During 2014 holiday season

Ps4 by End of April 2014, Xbox probably around November 2014

Nov 2014.

I think if only one of them was launching it would be before xmas. However I think they will cannibalise each others sales, so:

PS4 will over take Wii U 10th Jan 2014
XBox One will over take Wii U Feb 14th 2014

of 200i