Good question....for a long time now, I've been thinking "The Joy FM" doesn't get as much talking about as it deserves.
But, on the other hand, the ones that do get talked about so much generally do deserve it -- what's making them different and setting them apart are, in fact, the little things...the subtle things. Or, at least, seemingly subtle things. Those things make all the difference.
And I say that despite the fact that some of those things make listening significantly less pleasant for me. The stations that I (and, may I assume, we) tend to like to listen to are often stations that are underperforming their true potential specifically because they're doing things that I (we) like, myself (ourselves).
But all that has to do just with what's on the air; the ones that are frequently talked about have a lot on the ball off the air, as well, and all that, too, makes a big difference.