Where would you stay if you had one night and on the way to San Francisco? What is the best place in each of the above cities? 4 or 5 star quality, on the beach , and nice and romantic. Price is no object, and we just like walking on the beach and relaxing?
Carole

not on the beach, but very relaxing with a creek is at the Apple Farm in san luis obisbo. very romantic and spotless clean. spent one night there on a trip back from monterey.

Pismo Beach is the only place you mention that really has a beach. Morro Bay is more a quaint fishing village than a beach town. If you opt for Pismo Beach I'd say the best places are: Sea Venture Inn, Cliff's Resort or Sandcastle Inn.
In Morro Bay the Inn at Morro Bay is quite nice and is next to a state park and bird sanctuary. Also in Morro Bay is the Embarcadero Inn which is right in the main area on the waterfront.
San Luis Obispo is a great town but is inland. The previously mentioned Apple Farm would be a choice or Petit Soliel is a recently opened European-style inn and the Garden Street Inn is a very nice bed and breakfast with a great downtown location.

In Pismo Beach I like the Kon Tiki Inn.

www.kontikiinn.com

Morro Bay has a nice surfing beach just north of the Rock. Some pro competitions are held there, and I just found some great pictures on the web: http://www.pbase.com/roberthouse/storm .

yamamar

I have stayed at the Inn at Morro Bay was very nice has great bay views but no beach You can drive out to Morro rock in about 5 min. and there a nice beach there. Morro Bay is a very nice coastal town that is where I have stayed and would go back.

Have Fun
GP