I'm as big a Wonder Woman fan as any, but I believe that Wonder Woman's inclusion as one of the Big Three is as a result of paying homage to history.
She is one of only three super-heroes that have ben conitinuously published since her creation in 1941. She is the most recognizable super-heroine in existence and one of the few to ever grace the cover of a national publication.
In terms of sales and marketability, there have been several occasions where her comic was sellign very well (Perez, Loebs, Byrne) and every little girl used to want to be Wonder Woman, devouring her lunchboxes, costumes, underoos, etc.
The Superman and Batman phenonena was spurred on by their respective movie franchises, animated series, etc. Wonder Woman has not yet been given this type of attention.
Remember, there was a time when Superman and Batman could not touch the success or popularity of the X-Men or Spider-Man. DC decided to invet in these characters' untapped potential. They have yet to do this for Wonder Woman.
What could turn this around? If you goal is to make Wonder Woman a viable franchise, let Alan Moore, Neli Gaiman and some big name artist take over the comic, have Warner Bros develop an animated series.
And please...please...don't have Sandra Bullock star in the movie!
*LOL*
