What is the biggest difference between Beijingers and Shanghainese?

There is still a big difference between Beijingers and Shanghainese. For example, Beijingers are particularly fond of joking, while Shanghainese don't like joking at all. When choosing clothes, Beijingers put comfort first and beauty second, while Shanghainese put beauty first and persuasion second. In fact, their biggest difference is that they are all intellectuals in Beijing. He won't say he is an intellectual or can't say he is an intellectual. But Shanghai is different. Even if there are some illiterate people in Shanghai, their writing is elegant. That is to say, there are many intellectuals in Beijing, but there are many fake intellectuals in Shanghai.