Between the two dates you suggested, I would go on the Dec 1. Dec 8 is a discount night for AP and DVC people and when I went in '07 it was an AP/DVC discount night and it was sold out. Now, I'm not saying that all AP/DVC discount nights are going to be sellouts (and to be honest, I didn't feel that it being a sellout was that big a deal), but I do think it something worth considering.
We'll be going Dec 8. Does anyone have any thoughts or feelings on this? I honestly picked 8 because it was my favorite number and because it was a week night. Has anyone else been on a AP/DVC discount night? Just curious how crowded it would be.