User blog comment:Wachowman/My Top 10 Least Favorite Character For Smash/@comment-27859332-20150529231611/@comment-8182065-20150601092552

The only things they have in common are being royalty and their interest in the Mario Bros.

Peach is more elegant and proper acting between the two of them, while Daisy is the rough and tough tomboy. And just because a girl knows how to play sports doesn't necessarily make them a tomboy; Peach keeps a sense of femininity in her movements and style.

Peach has heart power (as well as her ability to float and emotion based skills), while Daisy's affinity is with flowers and crystals. Those abilities are exclusive, not shared between the two princesses.