We've done 8 day/7 night and 7 day/6 night Disney trips which were both nice, but I think 9 days/8 nights would be *perfect* for us. I would love to have 3 Magic Kingdom days, 1 Epcot day, 1 Hollywood Studios day, 1 Animal Kingdom day, 1 day for another Orlando area theme park (we did a Legoland day on our last trip and want to try Sea World on our next trip), 1 resort & DTD or Boardwalk day, and 1 water park day. This type of itinerary is what we are hoping for with our next trip. I am keeping our fingers crossed that we can get the flight times we want on both ends so that we can maximize our time and have a true 9 day/8 night trip.