The Knicks are no longer a rivalry with the Heat, because both the Knicks are lottery bound. Same reason for why they are no longer a rivalry with the Bulls or Pacers. There's no real competition between those two anymore. The only teams the Knicks are still a rivalry with are the Nets and Celtics. Personally, I don't have any problems with the Heat. The only teams in the NBA that I don't like are the Spurs, Celtics, Nets, Bulls and Mavericks.