What is the Worst Personality Disorder of all Ten Personality Disorders?

This video attempts to answer the question: What the worst personality disorder of the ten personality disorders This is a very challenging question because it's highly subjective, but I'm going try to answer the question in a roundabout way.
I start with the Cluster A personality disorders (odd, eccentric), move to Cluster B (dramatic, erratic) and then review the Cluster C personality disorder (anxious, fearful). Cluster A includes paranoid personality disorder, schizoid personality disorder, and schizotypal personality disorder. Cluster B includes antisocial personality disorder, narcissistic personality disorder, borderline personality disorder, and histrionic personality disorder. Cluster C includes avoidant personality disorder, dependent personality disorder, and obsessive-compulsive personality disorder.