Worst in what sense?
Ability?
Or marketability in order to push board sales which for the very most part the most important part of being a professional skateboarder?
Edgy comment and all, but ability wise, insert any and all female professional skateboarders ever, but they are ultra marketable, likeable and probably do quite well on the product sales side of thing.
Impossible question to answer really that is inevitably which personality with their name on a skateboard do i dislike the most.