Mine has to be Scabb Island, especially the town with the rotten ships and the beach with the creepy light-tower. Also liked the music there, the mood was dark and rotten, everything seemed very atmospheric.
Second has to be Blood Island for equal reasons. Loved the Hotel near the graveyard! I almost wondered, why there wasn't a town on Blood Island. Besides the cannibal-town? Who are all those people on the graveyard? Goodsoups?
EDIT: And why does Largo remind me of a little version of Quentin Tarrantino? Never thought about that one?