I imagine Vader smells like vinyl until you take his helmet off—and then even worse when you get him out of his suit, just before a Bacta treatment. read more
Despite their small size, they were efficient killing machines, with claws, fangs, and a sense of smell so acute, they could smell one's bloodline (as exemplified by Khabarakh 's identification of Leia Organa Solo as Darth Vader's daughter, which made her the Mal'ary'ush). read more