A few more British studio not mention - Crytek UK (Free Radical lolz), Evolution Studio's (Merged with SCEE Liverpool now), Bizarre (Project Gotham Racing), alot of EIDOS too. Does the situation change if Europe is counted as one territory for anyone? I'm not sure how 'fair' that is but in terms of population and landmass I'd guess it's on-par roughly with America.
For me though America wins out, I love Japanese games and stuff but lately non of what the East is producing bothers me, other then a few Capcom games (Some of which are being developed in the west anyway lol). Konami can't seem to produce anything of worth other then MGS which I'm passable too, Square Enix are cool but do too many rehashes on DS / PSP, SEGA are crap now and Namco.... can't think of any games they have except Tekken :/.
But er yeah, Nintendo still have a great output, and Sony Japan have some top games too. Meh.







