You are going to get answers all over the place on this one! I have been reading several similar threads as I am going September 6-12. Most crowd calendars, which people are also all over the spectrum about, predict slightly larger crowds (meaning the 2-4 level range rather than 1-2 level) for everywhere but Hollywood Studios, which will be well above average! I had no trouble getting dining reservations or fast passes I wanted, so I am hoping all the other three parks will be manageable. We have a touring plan for each park, and with EMH every day we can get a head start on whatever crowds may be. I will also be watching these boards when GE opens to see what others say. My weigh in-slightly about average crowds for September, but still less than average crowds except in Hollywood Studios, and Spring Break type crowds there.