I just thought of something: I'm totally biased. When I first watched the NBA at the age of 13-14, (season 1993-94) I built myself an opinion about most of the teams which I still support today, although the team, its players and its style may have completely changed over that long period of time.
For example:
Rockets: exciting, fun to watch, great style
Magic: Nick Anderson, need I say more?
Spurs: damn boring if you're not a fan, although they have great players
Pistons: Defensive aces, all of them
Then again, some teams haven't really changed over the last 15 years, have they? It's strange how some teams like the Pistons have always been known for their defense and there's always been a shining star on the Lakers. Or like the Mavs are never gonna win anything.
What do you guys think? Are you as biased as I am?