Off season (before mid-june) Sorrento, after that ravello. If in Sorrento go to Chaplins 'irish' bar after midnight. Some great and not so great restaurants there (look at the crowds). Great pizzeria on one of the back streets between chaplins and the sea. The drives on the amalfi are stunning, and while Positiano looks lovely, I didnt want to stay there, Ravello is more calming/sophis/etc. But for trips to Pompeii (by train) and Capri (by boat) Sorrento is great. Enjoy it!