Yah, that moto-rama writeup was pretty good. Highway 1 SF to Fort Bragg ... the BEST section is Jenner to Fort Ross, that is section just off the scale. The only "trouble" with Highway 1 is that on much of if, right turns headed north or left turns headed south, if you really blow it you better hope you're wearing your parachute AND your scuba gear.
128 from Cloverdale to Highway 1 is awesome, but like they said, traffic on nice (sunny) weekends can look most like a gypsy caravan.
In San Diego county, the Pines to Palms. And Montezuma Grade. And Sunrise Highway. All are absolutely immaculate. The South Grade of Palomar is not to be believed. It's only 7 miles, but you can spend all day going up and down that road. And when you get tired of going up and down the South Grade, then Mesa Grande Road is a great change of pace.
Highway 1 from Morro Bay to Carmel, IMHO, is greatly overrated. Beautiful scenery, but I don't consider the riding all that great.
Highway 25 and that whole area, that's pretty good, too. And of course Angeles Crest Highway and environs.
The rest of California, I dunno.