I’ve lived in base and commuted with the Passenger airlines. Commuted the entire time with FDX.
If I could do it over again, I would move to within a 3, maybe 4 hour drive of Memphis with reasonable airline service. That would be ideal. (If the other FDX Domiciles are doable to anyone looking at FedEx, I’d go for those with the same drive bubble.)
Outside the 3-4 hour drive bubble, I would move to a Hub city for FDX and/or AA/DAL/UAL, probably throw SWA in there too if I were going to do the winged commute. Definitely want a city that has day/night FDX flights. Having just a city served by FDX at Night outside the 3-4 hour drive bubble would really suck in my opinion. Unfortunately, that knocks off a fair amount of nice cities. It’s been mentioned before, but the loss of the NWA/Delta Hub was a huge blow for commuting to/from Memphis offline.
Honestly, I wish we would have tried the Memphis area. Commuting in the end sucks, but if you are going to commute, I think this is the best place to be a commuter at.