I'm not the norm, Yankees, JETS, Nets and Islanders
I guess the reason being early age living in the City, thus being a Yankees fan, and then moving to Long Island where the JETS use to practice/train at hofstra
and of course the Islanders and Nets are from Long Island.
I will say i was also a NYG fan for a lot of years at the same time I was a JETS fan.
My Dad was a Brooklyn Dodger fan and moved to the METS after they moved to LA, myself and Brother were Yanks fans