Six of one, half dozen the other. The port side gets you the Kauai coast and Napali coast sailby, but it also gets you a direct view of the less-than-glamorous industrial ports, which can be quite loud (especially in Maui).
Princess Cruises - Caribbean Princess - 07 Sept 18 - 12nts
Fly Uk to Fort Lauderdale (Overnight in Miami) : Princes Cays (Bahamas) : St. Thomas (U.S Virgin Islands) : St. Kitts : St. Lucia : Antigua : St. Maarten : Fort Lauderdale : Fly UK
Now from £985pp
Royal Caribbean - Navigator of the Seas - 3 Jun18 - 12nts
Southampton : Oslo (Norway) : Copenhagen : Tallinn (Estonia) : St Petersburg (overnight) : Helsinki : Skagen (Denmark) : Southampton
Now from £875pp
P&O Cruises - Britannia - 29 Mar 2019 - 7nts
Southampton : Rotterdam (Overnight) : Bruges (Zeebrugge) : St Peter Port : Southampton
Now from £437pp