We have been talking about doing delayed arrivals as well. But I still find myself against it for a number of reasons.
Animal Kingdom- I think this would be the one we'd be most likely to delay. BUT...that said, with it opening at 8 am, and AK being a notoriously hot park, I feel like you are giving up an hour of the coolest part of the day. And, I think I'd maybe like to get there a bit earlier, when it is cooler. So, it's definitely a tradeoff. Beat the crowds or beat the heat? Hmmmm.
HS- Rise, duh.
MK- This kind of goes back to the coolest part of the day argument. Plus, with us staying at the Grand, it makes a mid-day break pretty easy. I don't love the idea of a mid-day break on short hours. But, mathematically...if I am doing 8 hours of park time out of 10....I think I'd rather those 2 hours be in the middle of the day rather than at the beginning.
Epcot- this one is kind of tricky. I plan, like many of you are, I'm sure to do a lot of fooding at Epcot. We currently have an ADR for dinner at Via Napoli, but I'd like to do lunch either way at Regal Eagle. And....Food and Wine of course. Haha. So, with all that said, I'd like to get to the park earlier than later. I'd rather not get there at 1 o clock, rush through lunch, only have 4 or 5 hours between lunch and dinner. I feel like being able to eat earlier would be very helpful, or being able to do a thing or two before lunch makes the afternoon not so rushed.