[quote name='Xevious']Blizzard, Bioware, Activision, Temco are pretty good. I wish I can say GT interactive but they still haven't release Duke Nukem Forever.[/QUOTE]Actually, Bioware is Canadian, and Tecmo is Japanese...and GT interactive was eaten by Atari (then Infogrames) 5 years ago...I think you mean 3D Realms, as the DNF developer. No biggie.
Oh, and psiufoxx2:
[quote name='psiufoxx2']Silicon Knights are quite awesome too. (Eternal Darkness, MGS Twin Snakes)[/quote]Actually, Silicon Knights is also Canadian, so if we're talking about America the country and not America the continent, then I guess they don't count. Oh, well.
As for my favorites...
If we're talking about America the country, then I guess I'll say it probably used to be Lucasarts...but these days, I just don't know. It's getting hard these days.
If we're counting American-based localization companies WITHOUT Japanese parent companies...then I sure do love Mastiff and Working Designs. Natsume and Atlus rock, too, but they have Japanese parents, of course.
I tell ya what, Midway has been impressing the hell out of me lately. Awesome resurrections of Gauntlet, Spyhunter, Defender, Rush, Area 51, and others (new Smash TV rumor has me drooling) earn kudos from me, and having the incite to go out on a limb and localize an amazing Japanese game (that would surely have been overlooked, otherwise) like
Shadow Hearts: Covenant also earn tons of respect. Having Unreal in their corner is also going to be a
huge asset. Unreal Engine 3 is gonna be huge in the coming years. Plus, their pre-order bonuses kick
ass! Free games! It doesn't get much better than that.