We are planing our 4th trip to WDW in late Sep. It's me, DH, DD9 & DD 6. We try new things with each trip and did US/IOA last time in addition to WDW. I was following the reviews of the parties and they sound pretty neat with the different offerings & atmosphere but the overall impression it's too crowded and oversold. If we did the party it would most likely be our only Magic Kingdom day. If we do Legoland, Seaworld or something else we would do a regular Magic Kingdom day. I can't visit Orlando without seeing the castle!! Which would you chose? Or what else would you suggest?