One of the best party games I like to play at a sleepover is the old classic "Monopoly". It is always fun buying and selling the properties, and making the real estate deals with your opponents. It is always fun pretending that you are a real estate mogul, rolling the dice and buying properties, utilities, and railroads. Also, it is always fun selecting your game-piece. I always try to select the race car as my piece. Monopoly will always have a special place in my heart when it comes to a classic game.