When my mother was still alive, over 17 years ago, I guess my favorite was Thanksgiving because she always made it so nice and autumn is my favorite season. After she passed away, none of the holidays that I spent with MY family were pleasant, for several reasons I won't bother listing. As for least favorite, it's usually any holiday that involves gift giving. Call me a scrooge, but I dislike the pressure involved with it. I'd even give up receiving gifts not to have to buy ones for others. I see the idea of "gift" in a different way than spending money for material crap. I suppose Christmas is the worst since you need to give gifts to multiple people at one time. The holiday is a commercial and materialistic horror, nowadays. Most people don't even recognize it for what it's supposed to be.