As for Black Panther, I really, really like the character and Wakanda. Beyond being cool, powerful and possessing a genius level intellect, I really feel that he is a character that shoulders the burden of an entire people. He's not a hero, he's a king that happens to hang out with heroes, he's responsibilities rum much deeper than simply saving lives and swinging away. That's why I liked that Bast asked him to not merely serve his people, but to be their salvation. Black Panther isn't simply a symbol of justice, he is a symbol of his people's past, their culture, their heritage, and their hope; I can't think of any other marvel hero who is such a complete representation of those he protects.