Can I just say:
PS3:
Heavy Rain, White Knight Chronicles, The Last Guardian and MAG won't move a significant number of PS3s during their release week. Final Fantasy XIII, God of War III and Gran Turismo 5 have better chances and will be the ones to show a significant number of PS3s during their release week.
360:
Alan Wake, Fable III, Splinter Cell: Conviction, Crackdown 2 won't move a significant number of 360s during their release week. Halo: Reach will be the one to show a significant number of 360s during its release week.
Wii:
No More Heroes, Metroid Prime: The Other M won't move a significant number of Wiis during their release week. Super Mario Galaxy 2 and Zelda Wii willl be the ones to show a significant number of Wiis during it's release week. Having said that for the Wii, it really doesn't need those exclusives to produce significant boosts and sales. It just keeps on selling no matter what.
Essay Pro