Have you been to both places? If so, which would you choose to visit, bearing in mind, it would only be a day trip?
I studied in Wrocław and have only been once to Toruń - Toruń is a more cosy city especially the Old Town, but I don't know about the museums etc - the Old Town is simply nice to see as it is full of historic buildings from what I can tell - Toruń is also more of a Polish city than Wrocław (though the medieval churches were built by the Teutonic order) - has more Polish hisory to it
- Wrocław is far busier - lot's of people in the streets - and it's way bigger - if you wanted to see just a couple of old churches it would take 1 hour walk they are so far appart and they are typically not that beautiful inside - in Wrocław you need to go straight to the place you really want to see to save time (and there are only a couple of such important things of interest or beauty including Panorama Racławicka: panoramaraclawicka.pl/en/what_to_see.html) - and then just spend some time walking the main pedestrian streets
just found a website of Museum of Gingerbread in Toruń - muzeumpiernika.pl/?page=home-english - it looks like it is a live act