Or she could be a "better" Little Mac by having better jumping, aerials, and recovery. So, she'd be weaker in terms of raw damage, but she'd be less limited in the air. I guess Daisy could be the Captain Falcon to Little Mac's Ganondorf. How ironic that Ganondorf is the taller one - canonically and, I think, in SSB too, Ganondorf's really tall.
Seriously though, I really want a retcon to Daisy's (face) history, abilities, etc. I thought of a game where it starred Luigi and Daisy where Luigi's gameplay is sort of like regular 3D Mario games and Daisy's more like 3D Zelda except more action-y and involves a hammer like this one:
Perhaps it a bit too risqué so, spoiler'd.
It was the first thing to pop into my head after seeing the fan art. Luigi's the classic platformer who's kind of wimpy while Daisy's the tomboy bad*** who wrecks everything in her path.