Although we are due to go at Christmas this year, to be honest, it wouldnt have been my first choice of time period. We were orginally going to go around now (late Nov, to the Thanksgiving Sales then an early
MVMCP). The parks are usually quiet early Dec (a time we have done before and loved) plus you get all the festive atmosphere. We had no choice due to DH's work commitments, we HAD to go at Christmas.
I KNOW the parks are going to be heaving, and Im dreading that part of it, but to compensate I know the atmosphere will be magical. Having two small children, the rides arent our top priority, we are quite happy to "wander" the parks at our leisure!
To be honest, if didnt HAVE to go at Christmas then I wouldnt. If you can be flexible, then the run up (last weeks of Nov, early Dec) would be my ideal time to go. Also, its MUCH more expensive over the actual Christmas period (flights can vary by as much as £300 just by leaving a day or two into the "busy season").
Bad news is, DH has just got another contract which means it looks like we will have to do the same next year, cancelling our already booked Oct trip for Christmas again. Better hope we enjoy it this year then!!