I am in the early stages of planning a trip to U.S, IOA and CW for my family of 6, me ,dh, ds 14, dd 12, ds 8 and ds 5. I am thinking of December 21 to 27. Is this too many days? I have read that the parks are very crowded this week and want to make sure we get to do a lot. I am also planning on staying onsite. How many days does everyone do?