I moved from Nashville to Central Texas three years or so ago. In Nashville, there were no stations that existed, even in DX like Jack or Bob. Only since I've moved here, South Central Communications changed it's long-time oldies station (96.3/WMAK/Murfreesboro) to Jack FM (WCJK) and never got my first experience with these types of stations until I moved here.
Bob FM, when I first moved here, was a pretty good station three years ago. I can't say that now, probably because my music tastes change rapidly. I guess that I listened to it because it was a novelty. I have noticed that it does not play as many classic hits as it once did.
I like B/CS Jack FM and is better in comparison at least for now. It's nearly the same as the one in Nashville.