I used FDX a lot getting up to ANC. I will say it seemed easier getting a seat out of IND to ANC. MEM fills up quick, so if you are not in MEM, or if your gonna be Stnby for the Jumpseat out of MEM, try IND, I usually could get confirmed out of there more often. Ops in IND is Great too.
Also, NWA has a 747-200 out of ORD to ANC almost daily, that is probably the best kept secret to get in and out of ANC. They have 4 first class seats up stairs, very very very comfortable. They can take those 4 plus one more in a jumpseat up by the pilots. It leaves ORD around 3-4am, changes every once in a while. First come first serve, so if you get to ops around 1-1:30am, you should be golden. If you need help getting from Terminal to Ops, send me a message I will let you know. I could get there in about :30 mins, for 5 bucks. Cheapest way to ops!!!