This will depend mostly on Diana's speed. If she's fast enough to keep Daisy from landing solid blows on her then she'll eventually able to close the distance and take Daisy out. All she really needs is one good swing with her sword and Quake's done.
However if Daisy does get a direct hit in, then it shouldn't be too hard for her to keep WW off her feet with repeated blasts and eventually pummel her till she's out.