This is an excellent thread, and I've enjoyed reading all the responses. It shows the wide range of interest and tastes of the folks here, which is great. I thought I'd jump in...
I can't think of one, so I'll cheat and give my top two; Fredrik Klette and Isaac Berlin (early work). I feel both have similar characteristics, which probably is the reason I like them. Step wrist architecture to begin with, I love that look. I also am drawn to the carving. The early Berlin has the heavily influenced Baroque carving behind the cheek piece, and the Klette, while not as Baroque, has an intricate design that is unusual. They both have "early" architecture, which I like, a little stocky, yet graceful. The engraving on the Klette patch box is also fairly ornate and interesting. In a nut shell, that's it....
Ed