I've most likely had a day freed up in Orlando next weekend (Memorial Day Monday), with a potential half second day (flight at 6 PM Tuesday). I live in San Francisco, so Disneyland (which I frankly prefer) is close enough that I was going to skip WDW this Orlando trip, but since I'm there I figure I may as well do a whirlwind tour of WDW. Was at MK in 2011, the other parks not since 2000.
AK - not much interest, could skip it entirely. Would consider Expedition Everest if that's worthwhile but may just defer this until Pandora comes around.
HS - Tower of Terror and that's about it? I mean sure I'll do the Great Movie Ride if there's no wait, ditto RnRC. I only feel strongly about this if there's a good chance all Twilight Zone references will be wiped from both domestic versions in the near future. Also could basically take or leave this park (TZ possible exception) until Star Wars comes along.
Epcot - I'd do most things but don't feel too strongly about any of it except for having a nice lunch and/or dinner in a country. Certainly Spaceship Earth and Universe of Energy for the nostalgia, and Frozen if it's up and running - Frozen seems like it might be the biggest problem if it's open, though it might not be?
MK - most is worth doing, Splash and Fantasyland are my biggest priorities. Haven't seen New Fantasyland (but don't care all that much).
All this being said, does a hectic 1-day hopper or 1.5 days seem reasonable? What am I missing that I should really think twice about? Remember I do have Disneyland not too far from me. I've never been that concerned about shows. A hectic 1-day might even be better than 2 for me, with the 2nd day spent just doing a nice hotel lunch and/or Disney Springs.