Is Zurich the most livable city for you or according to some study? I found it average (definitely not bad) but I have only been there about 10 days in my life.

Is Zurich the most livable city for you or according to some study? I found it average (definitely not bad) but I have only been there about 10 days in my life. For example, given a choice I'd choose to live in Luzern than Zurich.