What is the difference between Yankees and Mets?

It seems that the rivalry or the Yankees and Mets has gone on for a long time. The Mets and Yankees are both from New York, so it is widely assumed that their fans are also mostly from New York. There are more Yankees fans as compared to Mets fans.

According to some statistics, the fans of the Mets are those who are from the Upper East Side while those who are fond of the Yankees are from the Bronx, Manhattan, and Connecticut. The Yankees players are usually clean-shaven while the Mets typically have beards. The Mets also have a mascot while the Yankees do not have a mascot.