@donio I think my best hit rate is with Cole Wehrle, but I've sat and thought about this for a bit and I think I run into the issue that I generally only bat about 50% on any designer that does more than a couple games. There always seems to be something that they do that makes me go "no, you sort of missed on this one..."
For example:
I enjoy Roads & Boats, Indonesia, and The Great Zimbabwe, but Antiquity/FCM/Bus all fell flat to me after a play or two.
I adore Root/Pamir/JC1 but An Infamous Traffic was not good, and Oath was not worth keeping (and I skipped JC2 after playtesting).
Glass Road/Ora & Labora/Bohnanza/Patchwork I like a lot, but I got rid of Caverna, Agricola, and I'm still deciding on the new Canal game.
Twilight Struggle/1989/1960 I adore, and a bunch of other Matthews games I got rid of.
- Glory to Rome, Innovation, and Mottainai are respectable, but The Bird and some others just sort of miss the mark I'm after.
John Bohrer is on a 30% hit rate and I think I still have like 3 or 4 of his Winsome games.
There are some designers who I don't bother with at all anymore, because their style just doesn't mesh with me at all, and that's great cause there are other people who like those, but if we're talking about "who is your go-to" then that's tougher to say.