I'll agree with NickF that Tennessee has a lot going for it. Still, most of the good things about Tennessee also apply to the Southern Missouri Ozarks
On my trip to Missouri last fall, I was also quite impressed how nice Northern Missouri looked. It reminded me of the Shire in LOTR. Western Iowa also seemed nice.
On the other hand, Northern Missouri is more big Ag Midwestern corn and soybeans than homestead land (good for me professionally as an agronomist, but lacking some of the good traits NickF mentioned).
Northern Arkansas is pretty, but I think the soils being a little more sloped and rocky aren't quite as conducive to farming as in S. Missouri (which also has slopes and rocks, but a little less).
Eastern Oklahoma is also nice, but I am concerned about possible implications of being on tribal reservation land, which most of OK technically is. I do love Braums ice cream.
Tennessee and Arkansas have pretty good politics, but Oklahoma and Missouri are a little better.
Revolting man brought up a good point about South Carolina (especially the Western part). It is nice, and the politics are good.
North Carolina is lovely, but the influx of liberals and Yanks in the Research Triangle (Raleigh, Durham, Chapel Hill) and Charlotte has shifted state politics badly in the wrong direction.
North Georgia is also pretty awesome, but Atlanta
Florida has some perks, but farming on sand takes some getting use to (lived there six years).