If only they can choose thier illness

If only He/She can choose his/her mental illness.
No one likes to be crazy (I mean the sick kind of crazy and not the good kind of crazy ).
(Sometimes there are more than one mental /psychological illness in one person .), but let's face it there are mental /psycholoical illness that are better than others , like :

Bipolar is better then depression ( Where one is always down ), ADHD is better than Asperger Syndrum (Where there is social , development ,communication delay, so not sure if it's a kind of disease or a kind of retardation ), Borderline is better than Avoident personality disorder(Where one avoids alot of things because of being scared , anxious ) .Paranoia is better then Schizophrenia (There is paranoid shcizophrenic , but I'm talking about pure Paranoia ).Narcissism is better then being a sociopath ( where the first one there is lack of emotions for other people , the other one is Pure evil that could do bad bad and evil things .)