I agree with most of this, but do not nerf characters. If you think one is to easy, do not pick him, problem solved, they are tons of other choices anyways. The reason why easier characters is not a bad thing is that they are some extremely difficult bosses to solo if you are new to this, and making them easier due to strong characters will remove a part of the frustration. The only thing strong characters do is allow those are not as good to have fun, and if it is to easy for you then you literally just have to either play another character or give yourself limitations. Its your fault for not doing those if these characters are to easy.