In theory, the definition of antihero provided here is not necessarily negative, though.
I think this category must be the most difficult to vote for all users.
Because the name and its definition is very susceptible to being interpreted in many ways. It can be seen as something positive or less positive. So, everything will depend on the mental disposition of the voter, at the time of the choice.
Maybe in the future, redefining the category description can help you make choices that are more in line with the idea with which it was created.