I can't answer your question about Christmas week itself. I think it would be fun,but now that my kids are in "college", I've come to realize that there may be SOME Christmas in the future as they grow and have families of their own, that we may celebrate Christmas as a family early/late and DH and I might be "alone" on Christmas itself, that's the year I go to DW for Christmas!!! Otherwise, I LOVE Christmas at home.
BUT the last two years we've gone first week in December and it's definitely my favorite time. We went last year in July and October also, and I also think Disney was made for Christmas. It's gorgeous, the Candlelight Processional is beautiful, the decorations are stunning, I love it. But again, I can't say about the week of Christmas itself.