I worked at DFW for 5 years. I lived in Hurst which is near the airport, like 15 minutes away, then I moved to East Dallas, which was like 40 minutes away if you worked a shift that was off peak traffic hours. If you're working at the airport proper and they make you park out in the BFE employee parking area, then add 20 to 30 minutes to your commute time to get to work, not counting if you have to clear security when you get there. Going home was worse because the bus ran less frequent at night taking you back to the parking lot.
I came to the conclusion that I was spending 15 hours a week trying to get to a job that I hated and wasn't getting paid for those hours. When I lived close, I still spending close to 8 to 10 hours a week. Would have been better off if I had 10 or 12 hours shifts.
As far as country living, I had a friend who lived out towards Justin, but that area was blowing up last time I was out that way.
DAL - Love Field is a lot smaller, closer to downtown Dallas. Traffic is still gonna suck during peak hours and you'll still probably spend more than an hour on the road trying to get there. I dunno what the employee situation is there.
DAL was recently remodeled, it's pretty sharp. DFW had built a new terminal and was trying to renovate everything else when I left.