I've genuinely never understood Wonder Woman's role as one of the big three other than to be the token girl. Her whole backstory is borderline (more directly) sexist albeit against males, her "lasso of truth" and bullet proof bracelets and the invisible plane have all struck me as particularly silly. Her powers have also WILDLY varied over time so that I'm not really sure what her current powers are, even with the help of wikipedia. DC is one of the best examples of a universe with poor female characters, most of whom are just copies of already existing male heroes. I'm not sure who I'd place in that top teir position though, and maybe that's why DC is stuck with one of the only unique female heroines to stick the test of time (name recognition) who also has comparable powers to the a-listers. The same goes for non-white heroes where they can't be bothered to make a new hero so much as just slap the same white hero's costume on them and give them a different name. Shame on them.
So yeah, I can see Flash getting there first (teehee). Here's to hoping that DC gets their act together. I mean, I can maybe see Power Girl but she's literally a female kryptonian. At least they didn't call her Supergirl/Superwoman and slap on the same costume (this time). Zatanna? I don't know, they've really done themselves a dis-service by making wonder woman one of the only viable distinct female heroes. Compare to Marvel who has at least a few legitimate options they can put in there who are unique and sometimes quite powerful (Invisible Woman, Jean Grey/Pheonix, Jubilee(joking), Storm, and a few more. There aren't many, female characters have trouble selling comics so they have trouble existing. But DC is really far behind here.