I'd say the Heat would make for a better mirror of the Bears' situation as they would be like the Packers - a bit underachieving but capable of wining it all. The Knicks are probably more of a rival though. I think, the Bulls don't really have a rival that's comparable to Packers/Bears. Come to think of it, does the NBA really have any classic rivalries? Lakers vs. Celtics? I thought about that but can you really be hated rivals when you are on other sides of the country from each other and play two regular season games a year and sometimes play in the Finals. I guess when most people think of NBA rivals this is probably what they think though. The NBA seems to be a league where rivalries are developed throughout a season and go on a season by season basis depending on the players on the teams.