He only kills when needed. 
Regarding his likes, that he doesn't know. He's sort of lost in a spiritual and mental sense.
Remember, your character should not be aware of these facts since they haven't met each other or know of one another.

As for names ships, Morgan has a Caravel-like ship called the Lagiacrus. It has scale-patterned, red sails and its figurehead is shape like a serpentine sea beast. Alice also has a ship. Its somewhat similar in size with the Going Merry. It's color scheme is made up of mostly black and purple and goes by the name Wonderland.