DD2's birthday is 17th Dec, I never had a problem with it and she gets lots of presents all in a week or 2. She does complain sometimes mid year that she has to wait so long but all kids do that LOL
My bro and his DD are both born on 27th december which can be a pain for them but if everyone is nice and buys seperate presents then its fine.
School is perfect for december babies cause they are already 5 when school starts.