Best Cycling Routes in San Diego

San Diego is a great place to do some road biking pretty much any time of the year.  The temperatures are fairly moderate, there are a number of bike paths and designated bike lanes, and I find the drivers in San Diego fairly accommodating for cyclists.  The best cycling is  in the Mission Bay, La Jolla and northern coast areas like Torrey Pines, Del Mar, and inland to places like Rancho Santa Fe and Poway.