SOS is determined by RPI. It's a mathematical formula and doesn't leave room for biases.
But while we're on the subject, I don't know if the Pac 10 is the best conference in the country. Unfortunately, I don't get to watch every game every night. However, there are people who get paid to watch basketball, so they get to watch every important game. All of these people agree that the Pac 10 is the best conference this year. I think I should take their word for it over people who probably haven't watched more than five Pac 10 games all year (ie, nearly everyone on this board).</p>