Ahhhh I see you point Rox. I left them out. My bad. To me, they are in the B categoryYou seem to have missed WHTT. They've grown quietly over the last couple of years to consistently look like a group A station to me.
WNED FM does exactly what it's programmed to do. It makes more than enough money to support itself and it presents classical music to a very loyal (and typically affluent) audience. To me, it fulfills its public broadcasting mission effectively.