It's a pretty close tie, in all honesty. Eating disorders are awful, however, Anorexia is just a bit worse than Bulimia. Bulimia is generally easier to cure in the sense that it's less about control. People who have Anorexia have much more control. Most of the people who are Anorexic are generally more reluctant to get treatment for their disorder. That being said, Anorexia is the worse of the two mentioned EDs.