I don't know if any of the families really have the presence left in California to make a judgement.

For what it's worth, in the earlier part of the decade, the annual Organized Crime in California reports claimed the biggest threat from traditional organized crime (TOC) to California appeared to be from a few East Coast crime families, who were firmly established in the state and often associated with power brokers in California, engaging in illegal activity between Las Vegas, Los Angeles, and San Diego; including loansharking, sports bookmaking, and infiltration of legitimate businesses such as parts of the entertainment industry (including the entertainment side of the gaming industry), food service industry, bars, restaurants, and nightclubs used for money laundering, profit skimming, consumer-fraud schemes, tax evasion, etc.

But it's interesting that the LCN hasn't even been included in those reports since 2005.

The reports also said the LA family was likely to continue to diminish, if not disappear, due to arrests and aging leadership; and they remained only sparsely active in a few illegal schemes, such as fraud and loansharking.