Here's a question maybe better suited for an LA forum: In other cities with two teams in the same sport there is regional support. For instance, The South Side of Chicago are for the White Sox fans while the North Side for the Cubs. NY has the Mets supported by Queens and the Yankees getting the Bronx and much of Manhattan. Do these regional fan bases exist in LA for the Clippers and Lakers?
There isn't a regional divide in LA. (Except for LA vs Anaheim teams, or USC vs UCLA football)
Lakers support is huge. The expensive seats go to the rich and apathetic. The upper deck goes to the real fans - the working class.
Clippers fans are made up of the spill over from the Lakers, or people like me who support the Clips 'cause I hate the slick apathy of the Lakers. :-)