Comparison pics from your Bobcats court on my pc.
I always thought it looked better with everything cranked up in the video card settings. It does to an extent, but the court lines seem to be worse rather then better. Notice the grainy looking wood texture with AA and AF off. You can get rid of that just by turning up AF. Maybe this is why EA used oversized court lines, because consoles have a limited form of anti-aliasing, if they have any at all.
EDIT -
I was wrong. I looked at Lagoa's Cleveland court, and AA definitely improved the jaggies, take a look.
Maybe you should just increase the size of the court lines a couple pixels.