Here’s my personal thoughts for Wonder Woman, based on this Poll.
Sarah Michelle Gellar - while I love her as an actress. The Problem is she’s just too short(5’3’) for this role. Also she’s now 28, and she’s well know(Both are not something Joss wants for Wonder Woman).
Charisma Carpenter — She has the Height(5’7") and the look. But she also is a bit old(about 34) for the part.
Katie Holmes — She also has the right height(5’9") and the look. She also about 26 years old. The Drawbacks - She’s well know and currently a mommy to be.
Lucy Lawless — She was Xena, why not Wonder Woman. She the right Height and look, but like Charisma, she too old(by Joss’s standards).
All of the other actresses on this poll wouldn’t be any better than these 4.
This brings Us to actresses not on the Poll.
Eliza Dushku — She also well known, and she’s slightly taller than SMG(at 5’5"). But she also only 25, can act and looks really hot in leather & spandex.
Michelle Trachtenberg — She’s known, but not too well known, She’s now 20 years old, She can act. She’s 5’7" tall, and has the look. Given Joss’ limitations, she may be a great choice.