Based on this I'd think I was a Mets fan. Luckily, I'm not.
The article also concluded that there are twice as many Yankees fans than Met fans, but the same amount in Manhattan. Yankees fans tend to be in better physical shape and single, while more Mets fans are overweight and married. Mets fans also monitor their team more rigorously the us Yankees fans, and listen to more sports talk radio.
They also have a survey for you to take to see what team's fans you are more alike. And as I suspected based on the image above, the survey thought I was a Mets fan.