The question is straight forward... if we asssume that the hardware boost in PS360 is according to the GTA IV's number then XBOX 360 will easily win.

If the hardware number is equal for both the platform then the XBOX 360 and PS3 will have a tough fight...

But the real question is that will GTA IV will manage to take both of these platform hardware numbers above Wii for next week.? or Wii will keep the crown.? 

The PS3 will move much more hardware then 360 this week. Neither of them will sell more then Wii specially when Nintendo have shipped alot this week.

I predict that GTA4 will move more PS3 hardware than 360 hardware :)

Based on attach rate of GTA, the PS3 should do better - much better.

ps3 will get the greater boost. as time moves on and GTA sales slow down, i predict MS will drop the 360 price and you will then see a boost not only in hardware sales but GTA sales also.

Considering the reports about big Wii availability last Sunday to accompany the launch of Mario Kart Wii it will have huge sales again next week in the Americas. Wii should also be high in Europe considering it was around 200k this week. Lastly with Golden Week Japan should be high as well, so I really don't think PS3 or Xbox 360 will even come close to Wii.
Between Xbox 360 and PS3 I expect PS3 to outsell Xbox 360 as it has done for the last few months. The higher attach rate for the PS3 version of GTA IV indicates to me there are more people picking up a PS3 than an Xbox 360 to play GTA IV, at least at the moment.

PS3 will see the biggest boost.

Why the devil would the Xbox 360 win? PS3 will continue to beat it.

1: PS3 will outsell 360
2: Either of the consoles will outsell Wii
3: People seem to agree
4: End thread

Yeah but you need to look at who is creating the thread to begin with. One of the biggest 360 biased people who says they support both... but look at his previous comments.