I have two equally favorite days: The day after Thanksgiving and the day after Christmas.
No stress, no mess, and I don’t have to cook a thing. No worrying about shopping, and both my daughters are home with me.
Thanksgiving. Most of my family is together then. Only a few of us are together on Christmas Eve or Day; the others spend it at their own houses with their kids and grandkids, and come in at various times the week after.
Thanksgiving. It’s the perfect holiday. You stuff yourself silly and don’t have to buy presents for anyone.
I voted “other”, although I enjoy many of the days in the poll.
But you left out Easter. For me it’s the best day.
One of my favorites is MLK day. I don’t have to cook, clean, decorate or buy gifts for it. Unfortunately, MLK day is not a holiday at my current job.
Other than that, Thanksgiving is a favorite. Cook a turkey, meet with friends and family, eat until you can’t eat any more.
My birthday. Which is tomorrow by the way. It’s Day of the Dead, which is pretty cool. And for the last eight years or so I’ve been going to Disneyland on my birthday. They give you a birthday badge, and the park employees all say Happy Birthday when you walk by!
I have a rule at work - I don’t work on my birthday. And if my birthday’s on a weekend, I don’t work on either the Friday or Monday.
I don’t love Thanksgiving so much, now that my in-laws are gone. I loved cooking Thanksgiving dinner for them, once we moved from our condo to a house with room for a dining room table. I could cook everything exactly the way I wanted it, I had an excuse to use my wedding china, and they loved my cooking. It’s hard to work up the energy now that it’s just my husband and me.
Much later on, they get more exciting again (Hey! I survived another year!)
Day after tomorrow is going to be right up there for me. I retired on Friday, and that will be the first (formerly) working day when I know I’m not just on vacation, I will never have to go to work again.
Other than that, holidays don’t do that much for me. Even when I was working, the day off was nice but that’s about it. There are lots of great days for me, but they don’t fall on a particular date in the calendar.
Halloween. Get to be around friends and family and unlike Turkey day, I won’t have to spend all day in the kitchen cooking the boring old mushy food that is usually associated with Thanksgiving. On Halloween it’s just, order up some pizzas, stock the fridge with plenty of beer and enjoy your friends and family.
Oh, and all the kids stopping by in their costumes is quite fun too.
The first nice day in March is sublime like no other. Here in Virginia, the weather starts to get nice usually around March 10–20. I hated it growing up in Cleveland, Ohio because the damn cold seemed to hang on forever and wouldn’t let up until well into April, long after any decent winter would have let go its gelid grip. It was an extremely pleasant surprise to welcome the nice springlike weather several weeks earlier in the year. Now, that’s how to have four seasons. Virginia has gotten it just right.
So my real answer is the first nice day in March in Virginia, which I look forward to every year. But to cite a fixed calendar date, I would say the first day of spring, the vernal equinox, because the sunlight is very important to me too and it’s a relief to tip that balance. The vernal equinox is of course the holiday of Nawruz, a very ancient celebration in Iran and throughout Central Asia. One of those “non-American holidays you know nothing about.” But I’m not Iranian or Central Asian, and I don’t actually “do” Nawruz (it has lots of associated ceremonies which I have no part in), so I just put “Other.”
My favorite is a non-American, very local holiday, but I’m not marking anything in the poll because I’m not sure if I should tick the last option or the one before.
December 3rd is my regional holiday. Officially, Navarre Day. Extraofficially, the Feast of St Francis Xavier. And for the neighboring regions in Spain and France, “Navarrese locusts day”, as we descend upon their stores for our Christmas shopping and upon their restaurants because hey, all that walking around with bags is tiresome 
It is part of the puente foral: we call 4-day weekends puentes, “bridges”, and ourselves the foral region (it’s the name of our kind of legal system); the 6th and 8th are national holidays (as in “most people who don’t work emergency services or hospitality get it off”) so if you add that local one you can easily get a whole week off. People from our capital get the “Pamplona aqueduct”: November 29th is [del]St Cernin, patron of Pamplona[/del] a local holiday, so yeah, don’t try to do business with my regional government between Nov29 and Dec8, nobody will pick up the phone.
Easter is the best, and most important, day of the year.
November 1. It’s Leftover Halloween Candy On Sale Day at the supermarkets!
The only thing better than that Reese’s Cup Halloween pumpkin is the Reese’s Cup Halloween pumpkin for 75% off.
Not to mention the fact that there is one thing better than the holiday turkey dinner – the cold turkey sandwiches the next day, on white bread slathered with mayo, too much salt, with a glass of milk. Best eating-day of the year.
Winter Solstice
Because more daylight each following day 
A lot to be said for that.
It’s a tossup between T-day and C-day, mainly because I like preparing the meals and remembering nearly 70 years of get-togethers of family and friends. T-day is traditional turkey and trimmings, but for Christmas, after several years of trying out crown roasts and prime ribs, I’ve settled on a seafood paella that is elegant and delicious.
Election Day.
This was actually a big day for my family. My parents worked the polls, and I started working when I was pretty young, so I got off school. It was the only secular day that was treated like something sacred by my family. Since both my parents were at the polls until late, we always had either Chinese carry-out or pizza, and watched the returns. It was the only day of the year we violated the “No TV during dinner” rule. I also got to stay up late to see who won.
I always take an extra day or two off after vacation before returning to work. THOSE are my favorite days.
Re-live the vacation, really get to relax and be HOME. I love to travel, but I also love where I live.
As much fun as vacations are, they can be stressful.
Being back home is my favorite time.
I went with other. The holidays and events listed don’t do much for me. I’m as likely to find them irritating as happy making.
The days that mean the most to me are the days Ms Hook and I take off for another trip.
January 6, 2015, heading south in the 5th wheel to sunny Arizona.
February 18, off to Israel for a couple of weeks.
May 15, off to Europe for two months.
Now those are days to long for.