Oh, I also should add, that we DID do the EMH parks (3 of the 4 days) in November because we thought it would be best for us (we have early riser children) and those parks were packed by 9:15am (8am opening). The one day we did a non-EMH park, the park didn't get crowded until 10:30 or so (9am opening). So, basically, we could get 1 - 1.5 hours of a relatively empty park either way. For our next trip, we are going to stay away from the morning EMH and not have to rush to an 8am opening.
You really should use those rules as a guideline and put together the schedule that works best for your family and their sleeping, eating, waking and bed times.
Kate