Let's see, decorating for sure. I like just being able to relax and look at my home decorated for the season. And the eating ~ I can't kid myself about that ~ all the special foods that aren't around except at this time.
Good answers everyone--
My favorites things are the music!, decorations (Especially lights), and all the smells that go with the holidays whether it is the baking, a christmas scented candle, hot chocolate, spiced tea, wassial etc...
Basically all the sights and sounds
I LOVE it that everyone is pleasant (usually)
and lastly-- the giving! I love to watch people open my presents and my favorite thing is filling stocking with neat little things!
I Christmas shop year round so it doesn't all hit me at once--