Board Thread:Antaeus' Arena: Audience Chamber/@comment-1515612-20160831210117/@comment-33075683-20160903021323

Percy wins hands down. Imo, Percy is easily the most powerful of the Seven (both Hazel and Nico back this up) and while Hazel is more skilled than Percy was when he was at that age, their difference in power as they are now is just too big. He wins hands down when it comes to swordplay, and I dare you to debate with me on that, and his Demigod abilities are greater than hers as well.

He can  He can control water (so far seen using liquid water that he has full control over), ice (to an extent), and can create storms (again, to an extent) and generate tremors and earthquakes. And he also knows how to control the Mist, and while it probably isn't to the extent that Hazel can, I'm willing to bet that he'd be able to at least cause her some problems with it.

Maybe if she were older and had more experience (I.E. Thalia and/or Jason) than she'd be a greater challenge, but she isn't.