No easy one-fits-all answer here in Los Angeles area. Some roads are pretty horrible while other are freshly paved and wonderful.
Still others have been freshly paved but with chip-seal which is pretty awful until it ages several years.
Even on the MUP's your riding surface may vary. Some sections of our local (Coyote Creek) trail are very much in need of a re-pave.
Rick / OCRR