Joker vs. Crane

In theory we the Joker is an anti-hero and Mr.Crane  is the good upstanding guy. Why does  the joker have to be the fault. He is doing what he wants and what he believes is right. Isn't that what a person is supposed to do? Aren't they supposed to stand up for what they believe in? Mr. Crane is the typical military officer who follows and obeys the law. He does what hes supposed to do, but his life is just a law and not his own. The joker is a person who is willing to do what he wants and doesn't give a HOOT about everyone else's opinion. So if being yourself make you an anti-hero then why would anyone want to be a good righteous person like Mr.Crane whose life is probably lonely and unfulfilled. Today everyone is afraid to be themselves. No one should hide who they are. The joker and Mr.Crane are completely different, but if the joker is an anti-hero then what makes him an anti-hero? Is it being unstable? Is it belief? Having your own personality? Being your own you? Not caring about what others think of you? Who created you and set boundaries around who you can be?who said not to do what you want? If the joker is an anti-hero for being himself and Mr.Crane is anything but a Law man.Then which would you be, the Hero or the Anti-hero.