Nintendo. Sure, they have questionable or even regrettable actions some times (Not localizing The Last Story, Xenoblade and Pandora's Tower,and the Wii was lacking in games), but the games they make always end up fun. As much as the internet (and especially this site) loves mocking their games as well their console, they are still high-quality games.
Valve. I'll let everyone here take care of this... then again, considering Episode 3, can we really say this? (Yes we can, but I had to make some reference to Valve time...)
Volition. They are rapidly becoming one of my favorite devs in the industry, and Saint's Row the Third looks like it could very well be one of my GotY at this rate. Plus, the best part is just putting things about them completely out of context. Example: they put a rainbow-farting unicorn in a game where you fight martians. This is the kind of insane shit we gamers grew up on.