One thing I love about German Christmas is that Germans always prefer soft yellow lights. When I studied in France my German friends would rail against the French town's use of white-blue Christmas decoration lights. Once, while riding the bus to the university, my German friend covered his eyes as we drove past and howled, "It's so ugly!! I can't even look at it!!"
While that's a bit dramatic, I have to say, those yellow lights are SO much prettier!
We loved Rothenburg's Christmas market! If only we'd had a little longer there! :)