We just went at the time you're asking about, and it was great! Crowd levels were not too bad, but the weekends were a bit heavier. The weather was decent, with one REALLY cold day... but a light jacket or long sleeves with jeans worked fine most days, and tshirts worked for a couple days. We did get one nasty thunderstorm, that most people looked unprepared for. (Weather Channel, people!
)
The Christmas decorations were terrific, even if they
were cut back from previous years, as I had read. Did lots of resort-hopping to check out the spectacular chocolate and gingerbread creations!
You might be interested in the Yuletide Fantasy backstage tour, it was lot's of fun. And we really enjoyed the Candlelight Processional too.
We're swapping up times with you, and going this June!! But that's the only time we can take my DNephew, who otherwise might never get to go. So we'll endure the heat for him!
I recommend making reservations just as soon as you can. And Pop was not bad in '06, so we're staying there again. We did enjoy our stay at ASMusic in Nov/Dec, the rooms there have been updated recently. But the little guy will enjoy the theming at Pop better.
Happy planning!