The overall presentation and style was really good, but just based on the control issues, I voted for Captain Downes and the Pirate Princess. I seem to be the only person not penalising it for not matching the theme, but I'm not seeing any better application of it in the other two games. Honestly, if I had to guess, I'd say that both of these games have had the theme retro-fitted. I also thought that the dialog in Captain Downes and the Pirate Princess was very well written and entertaining.
I struggled to play Captain Carver's Carnival Curios, I thought the game had gone wrong because of the map screen, and then it wouldn't let me pickup a drink, which I just told someone I would get for them. Apologies, but I gave up.