In all honesty is probably is one of the busiest times to go as far as all the info I have heard and read. ; I haven't been to Disney that time of year either, but I really don't think that it will be that bad. ; People do it all the time and probably with younger kids than you have which would be much harder. ; I don't think there will be people shoving and pushing or certainly no one will be a bad mood. ; I did hear that one year they did close the gates to Magic Kingdom on Jan 31 because they had met their quota of people. ; But those are the breaks I guess. ; It doesn't matter what time of year you go, some rides will be busier than others. ; If you kids have not gone before, I bet Xmas time is the best time of year to go. ; Not only can they enjoy the magical things at Disney, but they also get to enjoy the Magic of Christmas at Disney. ; Lines may get long for rides, but just make sure you can get FastPasses with your entry tickets. ; Then you will be able to plan while you are in the park. ;
By the way, if I had kids, I don't think I would hesitate to take them during Christmas at all. ; What an opportunity.