BRU appealed to me bcs of the Christmas market. I am also a big Magritte fan and the big museum is there. I have time off and the flights look easy going. Unless of course, there is another major snow storm, always a risk with winter flights though. The other thoughts were Venice or London but my friend from Venice says often the water levels are very high in Venice and can be very smelly and hard to get around. London flights don't look great.