die hard Bills/Sabres/Syracuse fan since I was a kid-hate all Boston teams in those sports
MLB-Cubs are #1 but not die hard (couldn't name the starting lineup or rotation right now), also follow the Blue Jays/Brewers/Yankees for different family/location reasons- hate the red sox
NBA- jump from team to team-not die hard for anyone-can't name more than 3-5 players on any one team at a time -actually liked the Celtics when Bird was there-now not so much
will never drink Sam Adams beer because it is from Boston
Premier League/Bundesliga/the rest of UEFA soccer- follow players more than teams for the most part-not die hard for anyone but sometimes follow the champs, sometimes follow the lovable losers
Serie A-Lazio was my Dad's team-so it is my team-die hard since Domenica Sportiva came in on Sunday mornings from Toronto
My point is if you pick your team between 8-12 years of age you can't change it-you are a lifer
anything after that and the older your get it is difficult to become a die hard fan