Liberty Tree is a table service, not a buffet so that may be easier on you for Christmas Dinner. It is nice at times to have a character meal where you can have the food brought to you. The down side is the bathroom. You must go up a staircase and it is very small, no room to change a diaper and always a line. The characters are great and personally we have always had great service. Our waiter for Easter Sunday last year was the best and he was REALLY busy. We had four under ten.
The children ALWAYS love Chef Mickey's and the characters do visit your table and spend time with the children. Crystal Palace is also another favorite but the tables are more crowded together than Chef Mickey's and you do not get that much character time.
All that aside, we repeat every one of these restaurants per each child's request. So you really can't go wrong. Hope this helps.