Leo and the Flame Princess

Piper McLean is a the kind of character I call a Mary Sue, and I hate her for it For those of wewe who don't know, a Mary Sue is a poorly written character (commonly found in bad fanfiction). This character is often female (a male version is a Gary Stu), and readers find her hard to believe.
Mary Sues are typically beautiful, to the point where wewe forget to breathe at the sight of her, and Piper is extremely beautiful. 'But she's supposed to be beautiful!' wewe say. 'She's the daughter of Aphrodite!' Yes, but in the PJO canon, daughters of Aphrodite are pretty much useless in battle, but not...