I think there is a real chance of one of the Republicans making the runoff (obviously with no chance), which would be important for turnout for downballot races. I just wish there weren't two major Republicans- instead just one.
The business interests don't seem to think that is likely and are going in for Villaraigosa to give a "hold your nose" option for Republicans.
Would Delaine Eastin win anything other than Mendocino, Trinity, Humboldt, and maybe Santa Cruz?
Probably all of those, except Santa Cruz. I could see her carrying Siskiyou as well and maybe a random Gold Rush county.