So who are your favorite developers? I started a thread on this a long time ago, and it gets tricky when you deal with publishers vs. development teams, but still...
Mine: Nintendo(at their best, not the Pokemon Snap/Mario Party 17 action), Valve(not a blemish), IO(haven't played Kane and Lynch, but it sounds like it fucked up their track record), id(Doom 3 was awesome, fuck you), and Pre-Microsoft Rare(from Cobra Triangle and RC Pro Am to Starfox Adventures, and hey, some people like Viva Pinata too).