X360
a) It still has a 5.7m lead on the PS3, and is much closer to the 50m milestone
b) It still has a $100 price difference than the PS3--with a potential price-cut for the Elite late next year
c)It still sells very well in the US and UK--arguably the two biggest gaming markets
d)Natal has gotten alot attention and buzz since its unveiling E3 09
e)Halo Reach