I do believe the Asian console market excluding Japan, is bigger than that of Japan alone. You got Korea and China for starters. Don't forget the smaller countries who are just starting to get on the current gen hardware (countries in SE Asia for instance like Malaysia, Philippines. etc...)
Umm, consoles are supposedly banned in China. Sure there may be a lot of black market pirated N64's but are there really a lot of PS3's and 360's? Not above board. And who's to say 360 isn't selling better in Taiwan, or South Korea? I have no idea.
You're also discounting places 360 may well dominate like Canada (could be as much as 10% of USA's sales) and Mexico. Maybe even South America.
Usually major publishers like EA divide their software sales (in financial reports) as "Americas" or North America, Europe, Japan, and "other" (sometimes other may include Japan). Other would be pretty much everything else obviously. "Other" is usually a miniscule percent of their sales. So if all these massive console sales are going on outside the major regions, nobody buys any games for them? I guess you could then claim piracy, but I'd be skeptical since until recently that wasn't an option on PS3.
Everything I've seen points to the vast vast majority of video game sales occurring in North America/Japan/Europe.
We also have the companies shipped numbers, which will account for every last nook and cranny they ship to worldwide. Although they aren't 1:1 with end user sales. So, if Sony ends up shipping less than MS in 2011, and it's a good possibility, you should then pretty much be forced to admit they were outsold worldwide. Given Road's latest figures, it should be very close, which jives with what I've been expecting. Wouldn't even be surprised if Ps3 wins by 1 or 2 hundred k, but it'll be close. Bottom line if Sony ships 7.5m PS3's or more for Oct-Dec, they'll win the WW ship battle (because 360 shipped 8.2 and was 800k behind going in). We'll find out next week.
I would say the bottom line here is pointing to areas we dont have numbers for and claiming X console won just isn't really a legitimate argument.