I'd have to say our top rivals are:
1. New York
2. Philadelphia
3. Orlando
4. Detroit
5. Indiana
Even though the Pacers are my #2 team, they're still a rival because of Isaiah Thomas.
Oh yeah, and
29. Grizzlies
I don't know how they could have ever been a rival. Rivalries are only born in the playoffs, and we've never met in the playoffs.