Planning for a trip to the West Coast

Good morning all
After a relatively chilly Easter break to the Balearics, we are looking to go to the West Coast of America next April, flying UC with VS. We have previously done San Francisco and then driven to Santa Monica (stopping off in Cambria overnight), but thinking of either doing Napa or Santa Barbara this time instead of San Francisco. We are definitely going to go to Santa Monica and stay at Shutters, but does anyone have any experience of either Santa Barbara or Napa and could make recommendations as to which one we should go to and how to get around? I understand that Santa Barbara is much closer to Santa Monica and that there is a train, but Napa is much further and we may need to fly? We don't really fancy the long drive again.
Thanks in advance. Sometimes I think planning a holiday is almost more fun than going on one. Or maybe not quite!
Lorelai
After a relatively chilly Easter break to the Balearics, we are looking to go to the West Coast of America next April, flying UC with VS. We have previously done San Francisco and then driven to Santa Monica (stopping off in Cambria overnight), but thinking of either doing Napa or Santa Barbara this time instead of San Francisco. We are definitely going to go to Santa Monica and stay at Shutters, but does anyone have any experience of either Santa Barbara or Napa and could make recommendations as to which one we should go to and how to get around? I understand that Santa Barbara is much closer to Santa Monica and that there is a train, but Napa is much further and we may need to fly? We don't really fancy the long drive again.
Thanks in advance. Sometimes I think planning a holiday is almost more fun than going on one. Or maybe not quite!
Lorelai