As far as trips with Slappette go, they all had something of value except maybe our second one, which was the first time driving there and back, it was during a very crowded Spring Break, it was shorter than our first so it felt more rushed, we didn't plan for breaks as well as we should have, and it was just a bit of a fustercluck. Even then, it had some great fun moments but that would be the worst. But the rest also have their share of "ups and downs" though there are far fewer downs.
The last trip was maybe the best because our eldest was 3, and a really good age for much of the ol' patented Disney magic. She didn't like many rides, too scary, and she liked It's a Small World WAY too much. But she mostly behaved exactly as you'd hope a three year old would behave during a WDW trip, with few behavioral problems and a whoooole lot of wide-eyed wonder. I wrote about our last night in another thread, where it was just the two of us, Slappette took Slapprerina #2 back to the room because she was exhausted and Slapperina #1 and I stayed for the MSEP. She was so cute and talkative some people thought we were "plants" hired to act like "regular tourists" but be loud and funny to keep those nearby amused while waiting for the parade. Another great moment was our first day, seeing the 3pm parade for the first time and Slapperina #1 had what she called "happy tears" seeing the princesses for the first time. A lot of character meals, since Slapperina #2 was an infant, we thought the Deluxe Dining Plan would be a better value so it always felt like showtime for #1. After the breakfast in Akershus, where Belle taught Slapperina #1 how to pose "like a lady," S#1 was so excited she jumped in my lap and said "kiss me Daddy," but before I could, she grabbed my face in her hands and sing-songed "You're being kissed BY A LAAAAADYYYYYY." She's a total trip. Even during one bad moment she made magic; she got a splinter at the walkway near the geyser at WIlderness Lodge so we left with her in tears until we could get to some tweezers. On the way out we saw a couple posing for wedding photos and they looked amazing. To distract Slapperina #1 I said "look honey, they just got married."
"Can I get muh-muh-married here?" (fighting through the splinter tears)
"uh...sure, if you want, why not?"
"Wuh-wuh-will you be my h-h-h-husband?"
"No honey I can't be your husband I'm MOMMY'S husband."
"PLLLLLLEEEEEASSSSE OWOWOWOWOWOWOW (holding up hand with splinter in case I forgot she's injured)
"Uh...OK, when you're old enough to get married, IF you still want to marry me, we can get married."
"....ohkey....(quiet for a second, sniffling) If you're married to me AND you're married to Mommy, what does that make Grandda?"
"A social pariah, dear, a social pariah..."
(Followed by a stern look from Mom not to be mean, and laughter from people behind us listening in)
EDIT: And from an earlier thread, my MSEP story:
last trip down, I'm holding my oldest while waiting for MSEP. My wife brought the baby back to the room, but Slapperina really wanted to see the parade so we stuck around. And this was one of those times I was getting a little louder because I know people are listening, so why not have some fun. I told her that it should be a very bright parade because "I hear there are, like, A MILLION lights in this parade." Slapperina looked up at the sky and went "a million...a million...maybe there are a million lights in the parade because there are a million stars in the sky!" There is a murmured "awwwwww" in our general vicinity, which she doesn't notice, but I hear. I say "Maybe that's why...you know, you've very philosophical." Now, she's three at this point, never heard the word philosophical, but decided she didn't like the sound of it, so she grabs my face with her hands, gets right in my face and goes, "No, YOU'RE PHILLASHPLOPPPICAL!" And the crows around us went bug-nuts with laughter. One man asked if we were "street performers" hired to pretend to be adorable guests waiting for the parade so people won't be bored. I said no, but it's nice to have career options.