#1 Only the Bills
#2 Only stats of other teams
#3 Moderately watch and learn about other teams.
#4 I watch and pay attention to all 32 team!
#5 I'm going to lie and say I pay close attention to the rest of league, but in reality I have zero perspective in which to evaluate the league and my team within it, so I get extremely subjectively angry and assume players and coaches must be the worst ever anytime something does not go my way!