I do find it interesting to compare the different crowd predictions. Kenny The Pirate never recommends going to a park with evening EMH, recommending instead a different park on those days. Which has me rethinking our plans. That idea does make sense to me, frankly. But I don't know if anyone here has ever used Kenny's recommendations. TP seems to be the one everyone relies on.
But wdw prep school also recommends not doing parks with EMH. Hmmm...
"Not doing" a park with EMH ignores the option of USING the EMH, but not being in that park the rest of the day.
AM EMH can be the very BEST time to be at a given park.
As MANY guests (regardless of their pre-arrival intentions) simply will not "get up early"
on vacation.
That means, that the earlier in the day, will see fewer guests in the park.
And, if that park starts filling up by, say, 10:30am... a smart visitor can park-hop elsewhere.
Also...
For certain parks, a late (the later the better... say, after 10:30pm) PM EMH will spell much shorter lines than during regular hours.
And, hopping INTO that park later in the day can be a good strategy.
(Again, to make PM EMH "pay off," it needs to be a LATER event.)