All of the above? I check crowd calendars, try to avoid parks with EMH and, right now, may switch a day around if reports come out that the new Villains DAH is affected MK evening crowds. Then, I get to a point, after I've tweaked and tweaked and tweaked our schedule hundreds of times that I end up just going with what will work best with our schedule, realizing, it may not be "ideal" in terms of crowds. I'm currently working on a 5 night trip where people in our party want to do all four parks, one water park, DS AND 2 dessert parties. Thank goodness they only want 2 ADR's. I'm also trying not to exhaust people in the process. It's one big gigantic puzzle.