I think it's better to reflect on the blessedness of the season in a spirit of charity instead of focusing on what we dislike in others.
That said: Given other debates on this list, shouldn't this poll include the Christmas Tree, aka the "Branch Theory" Tree?
I personally cannot STAND how people have made gifts the focus of their Christmas. Praying and focusing on Jesus is not just an "afterthought" its a 5 minute thanksgiving before eating...which should be done anyway.
When people OBSESS about what they are getting and get angry when they don't get "exactly what they want" on Christmas...that's when I pull out the Christianity sword!