Were I you, I'd go on a wait list. You may luck out and AKV may declare more inventory just before your visit, probably not until after the December holidays though.
Don't worry yourself too much over a blizzard. Looks to me from your tag that you're in NJ, just a state or two south of where you are and you'll be clear of the freeze zone. The hardest part would be getting your car cleared off to go. (All the more reason to leave for WDW early! Ha!)