While they both present compelling arguments, suffices to say Miley is more famous because we clearly don't need to use her last name anymore.

If you're unable to view the pointless video, it shows Miley barking about "being the most f***king famous person in Canada", while Averil flounces in (acting is not one of her talents) saying she's the most famous person in Canada. Miley wagers that she is, given she's currently "in Canada." Then they both pretend to start scrapping. It's NSFW on account of the language spilling from Miley's mouth. She manages to keep herself under wraps in what appears to be an ode to Bumblebee Man on holidays in Jamaica.

If Justin Bieber was in the room, that would be a different matter entirely.