I’ll break with the crowd.
We learned to love the Mouse’s House in Jan/Feb. There are three main factors for us, 1) very low crowds, 2) low humidity, and C) we get away from Chicago’s winter for a week or so.
Now the downside is that it can be cool. But that has never been a problem as my DW is a packing MONSTER. The first year I laughed at her for all the stuff she brought, now I just bow in awe ( and the weight of the bags ).
I will say that our Thanksgiving trip may have been one of the best, until the day after Thanksgiving, then it got pretty busy. But the holiday decorations changed the whole look of the place and really turned my DW and, (then teenage), DD into little girls again. It was a very special trip.
Anyhow, whenever you go will be spectacular.