These are the Selfridges Christmas windows. I think the yellow gift card window has some impact but I the other windows are lacking in focal points and a cohesive theme. On the other hand the Anya Hindmarsh windows are quite fun with the movement of the cogs, conveyor belt and sweets.
I like the Jean Paul Gaultier Christmas window with its 3D glasses - anything that encourages customer interaction is a good thing.
This window is another example of encouraging customer interaction - you can add a snowflake by tweeting a wish. Also, the movement of the flakes by the fan catches people attention - clever.