Hmm, there's about 3 developers I follow pretty much no matter what, which is Arcen, Phr00t, and Vlambeer...
...but none of them have yet put out a game I dont like, hah. Even if they did though I'd indeed still support it. For the most part though, it's all been awesomeness all around.
There's a few others that are close, but not quite at the level of those 3. As in, not enough to get me to do continuous testing. I'd say Mojang and Minecraft here but that one is WAY too bloated and I cant exactly do helpful testing for them or something, so they dont count.
I'd also say Gaslamp if they put out more than one game every century or so. I still need to have real go at Clockwork Empires here.