Rob, I need some of the stuff you've been smoking, my stash isn't that good.
590 out of Panama City is, and has been, standards for a very long time. 590 has a very good signal along the highway 98 corridor all the way to Mobile Bay. Some people were confused and were reporting that they believed FEMA had put up a repeater of the United Radio Broadcasters of New Orleans in the Slidell after Katrina when they were really picking up 590 from Panama City over in the Bayou. I'm sure that any station you hear on 590 is the Panama City station. 590 is one of the few stations with more nighttime power than daytime power, not that it helps out reception over here, but they do not power down at night like most every other AM station.
1450 from Pensacola plays sanitized commercial free adult contemporary music with their main artist being Lionel Ritchie. It's quite possible that they haven't updated their music library since 1990, making those '80's songs qualify as oldies now. I have to assume their target audience is the student and faculty population of PCC. If you can stand to listen to 1450, I need some of that stuff you're smokin'!
1620 is in a state of flux. They still have Pensacola blanketed with billboards for the old news shows that they no longer carry. I still hear talk shows (Ramsey, etc...) or Fox Sports radio whenever I tune in. Are you reporting that they are filling in some blank space with oldies? That would be some refreshing news. Has anyone else heard oldies on WNRP?
You completely skipped 1490 from Milton. They're the closest you're going to get to a standards/oldies station that you could pick up. Besides 1490 from Milton and 590 from Panama City, which are more standards than oldies, there aren't any oldies stations here. I'm not sure what the two DeFuniak Springs AMs are playing now, sometimes they play oldies.
Also, Redneck is right on with WMGR 930 from Bainbridge, GA covering the Florida prison preservation district with a remarkable signal for 5000 watts in that part of the country. They are a true "Scott Shannon True Oldies" station. I usually tune them in on I-10 between Bonifay and Marriana and keep them on until I get home in Bainbridge. They make movies about the "Florida prison preservation district," check out "Chattahoochee" and "Vernon, Florida" (a true cult classic) next time you're in the dvd store. Actually, both of these movies could probably be purchased online for less than $10 each.