This is just first month? I think Xbox would outsell PS, and Wii U would outsell both.

Rule number 1: You don't talk about Rare in front of Nintendo fans. Rule number 2: You NEVER talk about Rare in front of Nintendo fans.

What were the numbers of the first month of the Wii U?

I think NextXbox could win the first month.

PS4 95m
Xbox3 75m
WiiU 55m

All of the consoles will sell less than their predecessors, WiiU signficantly more so than the others. I don't believe it will have the effect Wii had, this time not all the casuals will be on board. This will force Nintendo to come out with a new console way earlier.

PS4 will be compararable to PS3, with a bigger install base in America. Sony's main focus will be that market.

Xbox3 will be a distant 2nd, it will lose sales to PS4 in America, while not gaining sales elsewhere in the world. Overall the console will be successful enough for Microsoft.

It's a bit hard to do without even seeing NextBox or PS4, but I'll take a stab :P

Wii U: 95 million
PS4: 90 million
X720: 75 million

A bit early, but Xbox will win first month only. Lifetime, I see:

WiiU- 88mil
PS4- 79mil
720-75mil

Oh, the way I interpreted the OP was that Wii U would win this theoretical month in which both the PS4 and Xbox 720 launched.

I don't even know anything about PS4 and Xbox 361 yet, but I would say in the first five years:

Xbox & Wii U 60-80 million
PS4 20-35 million

I can't see PS4 being anything more than a lesser Xbox with poorer marketing. The company is too much in ruins now.

The Playstation brand is much more bigger than Xbox WORLDWIDE. The ps3 first launched in the usa than japan than europe. Hence the reason i said launch worldwide in the thread.

WiiU 65m
Xbox 85m
PS4 50m

The problem is that by the time PS4 comes out the WiiUTwo will be on its way