Found this wonderful forum looking for info to help plan our trip in late Feb 2016. I've been reading lots of great info but it seems the more I read the more I realize how little I know. Sure could use some experienced help in recommending must see, must things to do, must places to eat.
The biggest thing I'll say is that everything is particular to the person's tastes that is answering the question. It's great to have recommendations, but it usually takes at least one trip to get a feel for what you and your husband will really like. So, for example, my favorite park is EPCOT, as I love World Showcase and all it offers visually and culturally. Some people despise it because it doesn't have rides everywhere, and each opinion is acceptable as it is just that... opinion.
My husband and I are currently booked the 22nd thru the 25th at POR for our first trip to DW.
Great choice!
We're not exactly spring chickens so kiddy attractions and meet and greets will not be on our list of must do's. Arriving about mid day on the 22nd. We understand there will be extra magic hours for Epcot on the 23rd and MK on the 24th. Currently we're planning on visiting AK on our arrival day so we'll only have a half day there. Epcot on day 2 and MK on day 3. No park hopper.... plan to stay at one park per day.
All sounds good... but as others have said there are no true "kiddie rides" at Disney, but yes, if you don't want to meet any characters, that takes care of that.
Questions:
Is AK worth visiting for half a day?
Yes, as is Hollywood Studios if you had the choice. If you like animals at all, AK is worth it. That being said it is my least favorite park, but I do love one ride there; the safari. AK is the hardest park to maneuver IMO, you can't just "look up" and get your bearings, it is the only park I still have to read the signs for directions or have a map.
Keeping in mind we are only spending one day here what are must see/do for Epcot?
The biggest thing to remember is that the park is large, and you'll do a lot of walking because of world showcase. Must do's to get the flavor of EPCOT would be Spaceship Earth, Journey into Imagination, Test Track (fast pass must), Soarin (but I believe it will be closed when you are there), and perhaps The Land, and/or the cheesy boat ride in the Mexico pavilion. Also, for me I try to catch the Voices of Liberty at the American Adventure, and watch American Adventure as well) This is the day to try any countries' food that you would find interesting, and remember it doesn't require a Table service meal, as each country has a counterservice with things to try. The Norway bakery is a fav (they also have good sandwiches there), as well as Via Napoli in Italy for a Table service meal, and the Carmel Kitchen in Germany for walk-up desserts.
Each country also has store to browse in, if you are determined to go in each, it will take a good long while to do so. We usually pick our favorite countries to linger in.
Only one day in MK, what are must see/do's?
To me, this is a harder question because it is truly a matter of taste... If you want a sitdown meal, Liberty Tree Tavern is my favorite. We always do Pirates of the Caribbean, Haunted Mansion, Peter Pan, Small World, the Carousel, Seven Dwarves Mine Train, and esp. the "PeopleMover" or TTA in Tomorrowland.
Attractions most valued to use FP+?
Depends on what you want to ride. Any of the "fast" rides are highly valuable. So, for example, Everest at AK, Test Track at EPCOT, Seven Dwarves at MK. If you want to ride Peter Pan at MK be sure to snag one, though now with the new que at Peter Pan, it is also neat to stand in line, but your time is valuable.
This is very family and taste specific. That being said, we don't have very many "must eats." I love Via Napoli because where I live there is no real Italian Pizza places, and I truly enjoy their pizzas. I like Japanese food at EPCOT as well. Liberty Tree at MK. We hit Starbucks for coffee. I will say; don't over eat. Disney belly is no fun. Eat in a similar pattern as you do at home. At Disney we eat at most one Table Service meal a day, usually it is one every other day. I seek out at least one nice "healthy" eat per day.
Ugggghhhh... I should of booked through a
travel agent. LOL
Naaahhhh... this is half the fun!

Truly the biggest advice I can give is just get generally "familiar" with things. Know about
MDE/MDX; My Disney Experience App and website, have an account. Know about FastPass, and go ahead and get 3 per day. Know about ADR's; Advanced Dining Reservations, and get them for whatever restaurants you feel you "must try." Grab a map for whatever parks you are going to for the day, even the night before at your hotel and just get a "feel" for the layout. The other thing is to take some time to relax and soak up the atmosphere. We love getting a snack or a drink and finding a bench to sit on and people watch for a bit.