Actually Japan is the last few weeks. In Others 360 has a slight lead.
All year round however, Others have/has saved the PS3 till recently. Hell, wasn't it 8+ straight weeks the 360 was beating the PS3 in Japan before the 80 gig was released?
Like I said before, Sony has to drop to $300 by middle of next year to get back their sales, because Microsoft will drop another $50-$100 next Fall. They have to drop before MS.
It's just that simple.