We were there Dec 9-14 and it was definitely busier than I expected! I had read a lot about how this time of year isn't busy. I've definitely seen it busier when I've been in the summer before, but I would not call it low crowds at all. Especially on the weekend, which I know is usually busier. Hollywood Studios was crazy on the Saturday. Lines were massive the whole day! We still had a great time and got everything done since we went at rope drop every morning, but I really was expecting it to be less busy. On the other hand, we were at universal studios Dec 7 & 8. Walked on to every ride multiple times, even the 1st day when we didn't get there until around 1pm. There was 1 or 2 times that we waited maybe 10 minutes.