I don't really have the patience to search out good radio stations. In the car I just listen to our local rock station. They play a lot of the same old crap but will spin a good deep cut now and then.
The thing that really impresses me, although it's not really a radio station, is the corporate tracklist they play at work. 40 hours a week of the same crap should be pretty grating, right? But it's really the most impressive collection I can remember encountering. You get the usual suspects as far as MJ and Adele and what you'd expect to hear. But interwoven in that are all kinds of great deep cuts and one hit wonders that should have been long forgotten, I've been turned out to plenty of great stuff. They keep up on new things too, they played Petty's new cut I Should Have Known It every frickin' night last summer and they also played the new Stones song that came out with the Exile remaster.
I mean they actually play Neil Young's Buffalo Springfield Again and Flags of Freedom. I've never heard those on a rock station, let alone on a corporate playlist.