Depends on your definition of “fun”. Beyond all the qualitative factors (liquor laws, cultural/music scene, etc) consider that people’s definition of “fun” changes over the course of their lifetime. In that case, let’s look at the age-structure breakdown of both cities (both taken from StatCan):

See how the age-structure profile for Montreal peaks for the 25-34 cohorts? That means there’s a greater share of people living within that age band in Montreal (which makes sense, since Montreal is one of the largest college towns in North America). Toronto, on the other hand, has two peaks – from 25-29 and then again from 45-49.

Our cities are a reflection of the people who live there, and Montreal has a greater concentration of people in their mid-20s to early-30s. Toronto, on the other hand, also has a significant concentration of people in their 40s. The quality of life in both cities will be reflective of the demographics. So Montreal will have a quality of life that is more catered to students and young professionals, whereas Toronto also caters to middle-age professionals.

The flavour of fun in both cities is reflective of the type fun people have in those age bands. So if you’re in your 20s or 30s, you’ll probably find Montreal more fun. However, if you’re in your 30s and 40s, you probably won’t mind Toronto at all. Consider, also, Toronto has a greater overall number of people in their 20s, so it caters to a younger crowd as well. The difference in that sense is that, because Montreal’s economy is centred on students and young professionals, it’s cheaper than Toronto.

Beyond the data, I moved to Toronto from Montreal and disagree with your claim. I’m having a blast here. It’s a different type of fun, but not less.

Originally posted on Quora on June 8, 2015.