Schubert....so ticket sales are your measuring stick? And THAT's what establishes Mozart as the pinnacle of human artistic expression. Now I got it!
I also note your deep familiarity with the alternative classical traditions. It is this full appreciation of context that animates your judgement as to the superiority of Mozart, Schubert, et. al.
Upon reflection, I now see that there is no cultural bias in your posts.
Marty
BTW, you been following the economics of classical music lately? The are just over 300 million people in this country and (last I looked) +/- 30 classical radio stations (not one of which is economically self-sufficient). As a statistical matter, virtually no one cares about Mozart. Institutions and a very small number of wealthy, self-perceived cultural elites subsidize (and have always subsidized) Mozart. And THAT money is all about maintaining the perception of superiority of the culture it represents.
To be clear, I am not denigrating the music you love. I'm merely highlighting the sweeping generalizations you've made in an effort to establish its "superiority" to other forms of music (and, when you're on a roll, all other artistic expression).