Jackie, I have to totally agree with you!! Before I read your favorite, I was trying to decide between first thing in the morning and evenings at MK. And I think evenings at MK won out!
The start of the day is filled with so much anticipation but the evenings are just so much fun - especially at MK. We have a few nights planned for MK coming up very soon. 
I agree, you can't beat evenings in the MK -- when all the lights start going up on Main Street. It makes me fall in love with it all over again.
What a wonderful memory!
I love all of it except the thought of riding the submarine. (I did ride it once, by the way. Once and only once.
)
You know, I am like you in that I don't like tight, enclosed spaces, but I always loved the submarines -- I think it was because it was because I wanted to be like my dad. However, I do not know how he could be on submarines under the ocean for months at a time. No thank you!
I think I like different times of the day at different parks and even different parts of parks, to be honest.
I love opening Magic Kingdom:
* seeing the crowd build and noticing those who are first/only-timers, listening to their conversations as they point things out and intently check their maps
* the thrill of the opening show
* being greeted by cast members wearing big white hands as Main Street comes to life
* walking on rides, getting off, and walking on again, if we choose
* eating mid-morning snacks from Main Street Bakery and people watching as the park begins to really fill.
Yes, I do have to agree that all of those things make mornings fun at the MK.
I love Fantasyland by morning, Adventureland by day, and Tomorrowland by night. Tomorrowland is so cool at night with all of the lights, I think.
I do always think of Tomorrowland at night.
Epcot - I don't really have a preference. I like strolling slowly out after once last lap around World Showcase after Illuminations, so I guess I'd have to go with evening.
I always think of Epcot in the mornings -- specifically drinking a coffee drink while the rest of my family rides Mission:Space.
Hollywood Studios - nighttime, because I love ending the day with Fantasmic.
Yes, I like DHS the best at night. Seeing the Tower of Terror all lit up and hearing the screams.
Animal Kingdom - morning. We love the early safaris and seeing the medical procedures done in the mornings at Rafiki's. Of course, if I am riding Kali, that needs to be the last evening ride so that I can exit the park after I am drenched.
Definitely a morning park in my mind with the sun rising over Harambi.
So, the world's worst decision-maker rides again!
I have no simple answer to your question. My answer comes with A, B, C, D and ALL OF THE ABOVE.
Let's face it -- we love all Disney parks at all times of the day.
I have to agree with MeMom about liking different parks at different times of the day. But overall I like mornings, before opening and the first hour and a half before it gets crowded.
At night I do like Tomorrowland and World Showcase, both because of the lights. I like World Showcase after Illuminations and the crowds have cleared out.
I do like different parks at different times of the day -- it's funny how when we think of certain ones, it is always at certain times of the day.
I love World Showcase during Illuminations -- right as it is starting and the torches are being lit.
What a great flash back to the story of you & your dad.
I think those simple things just turn out to be the best memories!
I don't remember a whole lot about that trip anymore, but I do remember that night like it happened yesterday.
I love EMH in the parks, especially morning. I like to be one of the few "special" people allowed in the parks early in the day, the high fours down main street, and the ability to ride six different rides before the crowds hit!
You can't beat it!
I would love to be in the parks at sunrise...but not on Leap Day when it was crowded ;-)
I would have been happy to fight the crowds that day -- it would have been a lot of fun.
then again, the one night that Katie and I spent in the MK till midnight (Joe was not feeling well) were magical too, the crowds were dwindling, the Jungle Cruise was awesome, there is something well, magical, about the park at night too.
My favorite Jungle Cruise was one we took at night. We had a great skipper who really hammed it up -- it was Connor's first ride on it, and he raved about it. LOL!
Twilight is my favorite time too....it seems to me that as the sun goes down, the lights go up, and EVERY inch of that park becomes more magical and mysterious all at the same time. I love it too because I can finally stop sweating!
Some of my favorite memories have also come at that point in the evening. Love your memory with your Dad...too funny about the spilled root beer float though! (Apples REALLY don't fall from the tree!)
I somehow suspected you and I would agree on this one, Jen. LOL! Charles offered his opinion last night. He said, "I like when it is nighttime, and I finally stop sweating like a pig."
Pretty much what I said a little more bluntly.
Isn't that funny about the root beer float -- when I realized that it became oh-so-clear why Chelsea always ends up sticky in the MK right before the parade.
Love memories like that! Twilight in Epcot ( or any park/Downtown Disney) is definitely my favorite time. The heat of the day is gone, the sky is turning beautiful colors, you have the fun of the day to look back on but the coming evening fun to look forward to - plus a yummy dinner...
Yes, that yummy dinner is always a plus!
To this day, my dad always says, "You could save so much money if you stayed off-site." I've tried explaining that it is all part of the experience, but he just doesn't get it.
As I have been doing my cleaning, I have had Disney music on in the background. Right now I am in France listening to the area background loop. Aaaaah! So nice a reminder of what comes in 79 days. 
