Bungie
Naughty Dog
Bioware
Infinity Ward
Treyarch
Valve
Ninja Theory
Crytek
Santa Monica
EA
Ubisoft
Activision
Blizzard
2K
THQ
SCEA
Bungie - their level of polish is nearly unrivaled. Every FPS should look to Bungie for how to make a working Multiplayer component and how to present stats online.
Woops, I just thought of this one (CD Projekt RED) now. Silly to have forgotten it.
It's a difficult poll because... well, I don't have one single favourite developer. Obsidian, BioWare, CD Projekt RED and Piranha Bytes are my favourite developers. *shrug*
Multiple choice poll needed here!
CDProjekt RED are the most awesome developers in the world, you can see they really care about their fans. Also, they developed The Witcher, which is the best game in the world.
A poll like this is impossible to get "right".
Are we talking PC only?
Console only?
International or region specific?
I chose Naughty Dog, only because the choices were so limited.
Konami?
Atari?
Square Enix?
Bethesda?
Lionhead?
We could even get all retro about it... My favorite dev/publisher of all time is Westwood!
Just too large a scope to poll about, really.