Categories I'd come up with in the last 15 seconds. Just imagine the words "Knowledge of" are in front of each of these:
Your favourite team:
Other teams in the L:
Your favourite player:
Team statistics:
Individual player stats:
In-Depth stats:
Basketball Strategy:
NBA History: (1960's onwards etc)
Recent NBA History (90's onwards):
NBA Finals History:
All-Star Game History:
End Of Year Awards History:
Overall mark:
It's fairly straight forward. There's alot of categories, but I figured since other threads like this have been successful, this could be. Here's mine:
Your favourite team: 82/100
Other teams in the L: 70/100
Your favourite player: 100/100

Team statistics: 20/100
Individual player stats: 65/100
In-Depth stats: 15/100
Basketball Strategy: 75/100
NBA History: (1960's onwards etc) 45/100
Recent NBA History (90's onwards): 65/100
NBA Finals History: 40/100
All-Star Game History: 30/100
End Of Year Awards History: 60/100
Overall mark: 55/100
I guess to the general public I'd know alot about the NBA, but anywhere where people have a clue I'm usually out of my depth. If I get into an argument involving anyone except Andrew Bogut I generally lose quite quickly. This comes from years of no basketball on FTA, and Australia's general lack of care regarding the sport.