Santa is supposed to be at all 3 hotels soon. I think he's starting either this Thurs. or Friday. As PP has said, there is one currently at DLR and one (back, yeah!) at DCA.
We were just there today and the ones aren't at the hotels yet, so we were told.
I have a friend who will be SC sometimes and since we have SC AP and can't go to many times more before our blocked out time he suggested the hotels-shorter lines and no block out days to worry about.
We were also there on Sunday and the line for SC at DCA was only a few people long.
BTW, the park was much busier today than I thought it would be. Looks like a lot of people are starting their T-day vacations a little early. It was even busier today than on Sunday.
HTH.