While we all have different tastes and expectations, Paris is still a city that bedazzles many (not always sure why, but...).
In my experience, it is a damn hard place to live unless you're loaded with dough -- and so inconvenient it is! Parisians can be so gloomy at times, which bothers me more than their brusqueness.
Although my life has been devoted to the French language, there is an abundance of places to speak it elsewhere (rest of France, Belgium, Québec, etc.). So language aside, a few good desserts and pretty buildings won't bring me back. If one thing could, though, it would be the allure of watching people speak a sophisticated language with hardcore arrogance (only in Paris...or perhaps Lyon, too? lol).
Paris has lost a lot of its bohemian feel that it once had years and years ago (philosophers analyzing and writing about life at the corner café). Sadly, the city has succumbed to contemporary globalization and is experienced as any other major city around the world (still has some unique characteristics, nonetheless).
I would argue that Berlin is Europe's most bohemian city, if there is such a place in today's world in light of global modernization and materialism.