I love Zurich during the holiday season. There are a few places you should check out:
Check out my photos:

Holiday decoration at the Swiss Lindt Factory, Kilchberg

Sihlcity decoration for the holidays, Zurich

Wooden candles at the Bürkliplatz market, Zurich

Credit Suisse at night, Paradeplatz

Swarovski crystals inside of the main train station

Tirggel cookies inside of a café
Lindt factory illuminated

Zurich by night during the holidays

Beautiful colorful trees in the Credit Suisse Passage, Paradeplatz

Christmas tree in front of the Credit Suisse, Paradeplatz

Salon de thé in old town Zurich
Hope you will a great time this season!