Another +vote for the Avlex/MiPro HS-03 (which I think is the same as the HS-09 except it is dual ear).
I have used Countryman (only once) & AudioTechnica 892c (lots of them).
I prefer the HS-03. It sounds good, and I really like the dual ear design & adjustability. Our pastor used the AT for a long time and then tried the HS-03. He has NEVER looked back!
However, I do some of my own modifications to the HS-03.
1.) I cut some small grooves and tie a couple small pieces of wire around one of the parts to hold it together a little better... I will try to get a picture explain that sometime if you wish.
2.) Like Cory said, the cable supplied with the HS-03 is very fragile. Actually, the fragile part is the miniature coax connector at the body pack end. It snaps off easily. I SOLVED this problem when I found a cable that eliminates this extra connector on the body pack end. The cable I now use is a Provider Series PSM1 replacement cable purchased from Jireh Supplies. (see attached pictures)
I have found the Avlex HS-03 & Provider Series PSM1 are identical, but with different name branding (and different cables). I'm not sure who the actual manufacturer is.
It is actually cheaper to purchase an HS-03 from Cory (which includes the fragile cable) and purchase the more robust PSM1 replacement cable from Jireh instead of just purchasing a complete PSM1 with cable from Jireh.
The ear hooks can be folded to lay flat to save storage space. The ear hooks can also be flipped 180 degrees to switch which side of the face the mic is on (left or right).
While that can be a useful feature, I am actually considering just gluing the ear hooks in place to fix their orientation. It is a very minor issue, but once in a while the ear hooks might change orientation, and then the end user does not figure out how to properly adjust ear hook orientation... then they end up bending the ?!#$! out of the mic. Also, the ear hook adjustment can become a little loose after a lot of use.
I have not done this yet, but might consider it for new purchases.