If you are looking for a good place to go for Christmas you can start by knowing the places to avoid during the holiday season:
1) Paris - scientists have discovered that during the holiday season the whole perfume industry descends on the town along with a large number of famous people (although I am not sure who they are). If you have alergies to famous people, cliched adverts or perfumes it's a good place to avoid.
2) Victorian London - it has long been known that Christmas time is when there's heavy snow in Victorian London followed by mean-ness, poverty and tall, black hats.
These are at least two places to desperately avoid during the holidays. If you can avoid these places it may improve your chances of a decent holiday.