How much will the PS3 outsell the Xbox 360 by next week?

[starcraft]

thekitchensink said:
I really don't see how people think MGS4 will make the PS3 outsell the Wii, even for a week. After all, the 360 and PS3 boosts put together for GTAIV were still easily trounced by Wii, and GTA is a much, MUCH bigger game, saleswise, than MGS. Without a matching release like Mario Kart this time, Wii may not DOUBLE PS3's sales, but it won't be outsold.

The title is seen as the (eighteenth) first AAA title on the PS3 thats exclusive.  As such, many PS fans that still believe the PS3 will come out on top this generation have to believe the title will push the PS3's sales beyond reasonable expectations.