FedEx without a doubt
CX may have some advantages (don't ask me what they are) but without a doubt, FedEx is an easy decision. If you have a class date with them don't even hesitate. Take it. Coming from a U.S. airline background and now working for CX, despite the dismal condition of the U.S. 121 carriers now (FedEx as you know doesn't fall in this "category"), you're better off with the Blue and Orange....even if u do have to live in Graceland!
Aloha!