Looks to me like two races are going on, both against Microsoft. SMG vs. Halo3 and PS3 vs X360 sales.
Japan is already won.
Other is next. Which if either, wins against Softy and what Year/Quarter?
Then next is the world, and finally, can either one beat MS on its home turf in America? Year/Qtr of prediction if ever.
Myself, I really have no idea, except to believe both SMG and PS3 will win in Other, probably in late 2008.
Torturing the numbers. Hear them scream.