You could also compromise a bit, by using the AC when moving, and shutting it off when you're at a stop.
Honestly, you're far better off traveling with the windows down and the blower running, even up to 75
MPH than using the AC, fuel wise. (As demonstrated at the FEH Experience.)
What you'll get is unique to you, your speed, your commute, your patters, your accessory and how you'll drive determines your MPGs, and I would shy away from
anyone and any vehicle that's going to make blanket statements about FE with constant AC usage.