I love holidays in general, just for different reasons. Halloween and Christmas are tied for favorite because Halloween is one I spend with friends. Even if it isn't on Halloween itself, the month tends to be about us getting costumes, watching horror movies, maybe having a get together or two and, of course, all the spooky meme's. I don't always watch horror movies but once October starts it is horror every day. Carving pumpkins, obviously gotta do that, seeing how people decorate their homes for trick or treating and, of course, trick or treating itself! I still go lol so I love it!
Christmas is different though since, for me, it has to do with family. I actually don't really celebrate Thanksgiving with anyone other than my dad and brothers while Christmas is a huge get together as in aunt's, uncle's, cousins, long lost relatives appearing from the swamps of who knows where. It can be loads of fun. Rather than get everyone gifts for such events, we all just purchase a single present then play games and exchange them at the get together so no stress! Just lots of games, food and seeing people I haven't seen all year. I know not everyone loves spending time with their family but, in my case, my family is super loud, loves to play games and joke around so it tends to be a lot of fun. I've always got a lot of Christmas spirit! Not to mention the lights, ooooh man, I love just walking or driving around with people to see the lights! Ah, and my cats love the Christmas tree so that's a hoot lol
In short, I love the holidays. Each one is a little different but I can see why it may not be as fun for others. If I compared it to childhood, I'd say my excitement is the same. It's just in a different form, before I wanted presents, now I like seeing people open what I've made/bought for them. Before, I wanted to trick or treat, now I can skip all the walking and buy the candy myself XD