Family and Friends
Hades is the god of the Underworld and wealth. He is the brother of Zeus, Poseidon, Hera, Hestia, and Demeter. Cronus and Rhea are his parents and Persephone is his wife. Hades doesn't interact with a lot of people thus resulting in his lack of friends. That doesn't mean he isn't fond of people or things, like the Furies or his dog Cerberus.
Due to his lack of team skills or people skills in general, Hades would be terrible at sports that require socializing. Also with the amount of people who fear him and the fact that he stays in the Underworld all the time, Hades doesn't play sports or is really bad at them.
Since he is the god of wealth, Hades would be interested in keeping a gem collection or some type of money hoard.He would also be into the supernatural since they're ghosts all around him.
Hades does like type to enjoy rock or heavy metal, but Hades would also enjoy classical music because it reminds him of the past. Sonatas, preludes, minutes, the whole shebang.
Oxford, England is said to be haunted so Hades would like to look around at the old Victorian style buildings and see if they're really are ghosts.
Another place to vacation would be Paris but just to see all the bones in the Catacombs.
Hades doesn't have as much of a temper as his brothers but that doesn't mean certain things don't get to him like having an annoying laugh or being to cheerful and preppy.