Wow, you are eating at many places I haven't had a chance to try yet, either! Really great ADR's!
Nighttime EMH at Epcot...Awesome!!! I wish AK had night time EMH. Part of the reason we loved going to the Halloween party at our zoo was because it was at night. Zoo is not usually open at night either, so it was a real treat and we loved it.
From someone who likes to take in EVERY BIT of Disney magic I can while on vacation...I think you will actually enjoy the early evenings with H, more laid back approach to the park touring. It makes vacation not just fun, but relaxing also. A totally different vibe, but SO well worth it.