Originally Posted by
Agent 86
I think that's the point - Diana represents the balance between Superman and Batman - the "happy middle" so to speak. Diana should really serve as the connecting tissue which binds the trinity together because otherwise Superman and Batman are just too different to be able to effectively work together without continually butting heads.
For me, an important point of differentiation (which has sadly been sorely misused) is that Diana would, IF absolutely necessary, use lethal force when in battle. Superman and Batman usually (at least in the comics) do not kill their opponents. I thought that Diana's pragmatism when it comes to some battles and the need to (rarely) kill in order to serve the greater good was an interesting counterpoint for Diana to have.
I think it's also interesting that while Superman and Batman come from somewhat ... damaged backgrounds (i.e. Krypton exploded and Batman's parents were murdered), Diana lived her early life in a literal paradise that was free of conflict, famine, etc. But, Diana willingly sacrifices her "perfect" life because she wants to improve the world of man. Whether permanent or temporary, leaving Themyscira is a pretty major move for Diana. In many ways, Superman and Batman because heroes not by their own choice (i.e. Clark feels compelled to use his abilities for good and Batman is working through his trauma by embracing the bat). Diana becomes a hero because she wants to do good - it's very much her decision to leave behind the safety of Themyscira and embrace all the complications of living in man's world.
The fact that Diana (usually?) does not have a secret identity is also a point of difference. Diana has nothing to hide when out in the public. Diana is "Diana", whether she's more formally performing actions as Princess Diana of Themyscira, Wonder Woman or grabbing the groceries as "Diana Prince". That level of openness and vulnerability is a little different to Clark and Bruce who typically go to great lengths to maintain their secret identities.
Finally, in a certain way, I think Diana does have the ... "answers" so to speak. Diana does represent a culture that has enjoyed thousands of years of peace and solidarity. Ideally, a culture that has developed scientifically and technologically. A culture that has faced some internal and even external conflict, but rose above it to become stronger and united. With so many challenges facing the "real world", I think it would be interesting to view Diana as someone who actually has the practical experience and knowledge to try to address some of those issues. As an Ambassador for Themyscira, there is the potentially for Diana to really change the world for the better, unrelated to her super heroics battling evil villains. It's an idea that has been toyed with from time to time, with Diana publishing a book including various personal essays, etc. But, I think it could be a stronger focus.