Well, if WW's powers come from 'magical' augmentation, it would only be logical for the battle to take place inside an antimagic circle.
Let's see
Lois: Str 16 Dex 18 Con 14 Int 16 Wis 16 Cha 16 (can't have all 18s across the board.
Diana: Str 20+ Dex 18 Con 18 Int 10 Wis 8 Cha 18
I assert that Lois is both smarter and wiser than Diana (who has yet to figure out that Lois's 'infertility problem' may belong to Lois's husband WHO IS AN ALIEN). Give Lois a couple good feats and let her avoid any grapples, and yeah she might be able to wipe Diana's clock.
You can tell I've been spending way too much time doing D&D stuff.