Personally, mine is Paradox Development Studio. I mean, they aren't my favorite studio in the world (Atlus/Obsidian) but I trust them more than any other studio, because they are so transparent with their development that you know if you want a game or not before hand; I preordered CK2 because they released early copies to a few youtube streamers and let them stream as much as they want. i didn't preorder march of the eagles (despite having the most wiki points lol), because the game wasn't interesting to me and I knew that from the developer diaries and what not.
Atlus is also transparent but that's because most of their games come out in Japan a month or three earlier.
So I was just wondering which one y'all trust the most?