Wonder Woman, a cool character when done in the way of Justice League Animated.
I think I've said it a couple of times that Wonder Woman could easily be the Thor of the DCU. She's got ties to Hellenistic Gods, Superhuman abilities to rival some of the best metahumans in the DCU and the compassion to make Mother Teresa look like Malcolm X in comparison...unless you piss her off.
Visually, I like how she looks. I mean...there's a little too much Red, White and Blue for a character who supposedly has little to do with America but I think she looks best in a lot of her combat armor and swords and shields to make me wish she'd keep that look.
That's what she should be, the Goddess of Compassion and War all in one. And there's no saying why she can't. Heck, maybe if a writer had the guts, he/she could have Diana fight her way to making herself Queen of Olympus and the Gods themselves. She's the female Achilles, the modern Perseus, the morally aligned Heracles. There's SO much they could do with this...WITHOUT having to really so much on T&A, romance and so on.
Have her fight Darkseid, have her kill Ares and assume Godhood, have her actually use political statesmanship to gain a victory without lifting a single weapon. Its all in her resume!