Personally, I dislike ALL holidays, including Halloween. I'm not "against" it though, in the sense of I don't think it should be abolished. I don't care what other people do, I just don't like messing with all that stuff.
I love Halloween and is not something we celebrate in my country, we do have halloween parties now however. I love the scary, mystical and candy part of it. Is like everything that is good rolled into one.