Since we've only done 2; On the NCL Star out of Venice-Montenegro, Corfu, Santorini, Mykonos, Dubrovnik & because of airline snafu, got an extra 2 days at AA's expense with a whole day in Treviso, Italy. 2nd was the Pride of America Hawaii cruise. Both were so different, impossible to pick a favorite. Looking forward to adding the beauty of Alaska Inner Passage in June on the Bliss. Have December scheduled on the Epic with 2 days in Rome before heading to Israel with stops in Florence,Naples,Athens, Kusadasi & Istanbul Turkey, Patmos & Rhodes, Greece, Limassol, Cyprus, Jerusalem & Tel Aviv. I seriously doubt there will be one that stands out over the others. Each will have it's special place in my memory, based on the 2 we've experienced so far.