Halloween has always been my favorite holiday. It's the most fun holiday, as far as I'm concerned. And I always love the excuse to watch a lot of horror films, and attend parties in costume (always a viable ice-breaker).
My favorite is 4th of July. Love to watch things blow up. Halloween is perhaps my least favorite. I enjoy the spooky crap, but I'm not a fan of being a slave to the doorbell that night. Anymore, wife and I just go eat dinner and go see a movie that night.
Least favourite holiday is New Years Eve, I just think it's ridiculously lame for people to run around yelling how close it is to midnight.
When I was a kid it was pretty cool, cos usually you wouldn't get to stay up that late, but now being around obnoxious drunk people telling me how great things are going to be in the new year is just annoying as ****. Usually just spend it with family.