I've been to the same two Janet Stover clinics that Sherry has, and I do like Janet's style. I like the fact that the number of students is limited to 20, so you get lots of individual attention. Janet is great at figuring out how to solve a horse and/or rider's problems.
I like Josey clinics when I'm on a green horse. It's a great place to get the youngster used to all the sights and sounds and being around lots of other horses. You also do plenty of slow work on the pattern, which is great for the green horse.
I haven't been to any of the other clinics on the list, but heck, I'd like to try em all! <ROCKON>