Anyway, some specific (and controversial) others I'd add...
Monster Hunter 3 (PS3) After how Basara 3's shaking out, I sort of wonder if adding a PS3 version wouldn't have pushed overall sales decently. Of course, the other end of this would be losing out on Nintendo's sweetheart western publishing/promotional deals.
Metal Gear Solid 4 (360) Seems like such a no-brainer, that I'm still not sure why it didn't happen. Konami ported MGS2 to Xbox, it's a little mind boggling that they wouldn't port a game that did worse to a system that did better. :/
Final Fantasy XIII (Wii) Would've cleared 2m in Japan then, maybe even 3m total (Wii&PS3). At least Wada was smart enough to insist on a 360 release for the west (and probably taking Microsoft's money for it).
