Gdańsk or Wroclaw for Christmas markets?

Im planning to take my girlfriend for few days to one of those cities for Christmas markets this year. I never seen Christmas markets in any of those I was in kraków before but thinking of taking her to either Gdańsk or Wroclaw. we went to gdańsk before in spring for 4 days too and done a most of tourist things so this trip would be strictly Christmas markets, drinking and food places and maybe trip to malbork. Wrocław personally I was there so many times mainly summertime but my girlfriend was never there so I don’t know would it be nice to take her to new place or see the same place but with Christmas markets. I was thinking 3 nights so around 3 days including getting to and from airport too. What city would have better markets and vibe in december