When I initially saw the pictures of Parthenon (pre-show version), the superficial similarities to Kid Olympus of Pride High really jumped out at me. But a closer reading of both characters revealed just how different they are:
Kid Olympus (KO) is Greek-Chinese, Parthenon is not.
KO's bracer was forged by Hephaestus, Parthenon's by a royal blacksmith of Atlantis.
KO's bracer transforms into various weapons bestowed by the Greek Pantheon (minor spoiler). So far we've only seen the "Whip of Hades" but KO has also been blessed by other deities. Parthenon's bracer doesn't transform, but rather relies on mystical gems that each come with a separate power.
KO is on a quest to collect the favor of more Greek deities, a task complicated by their disdain for someone who is only half-Greek. Parthenon is on a quest to seek out more gems of Atlantis (now I have the song, Gem Sweater in my head).
KO's costume is a blue, stylized wrestling singlet with white trim and no cape. Parthenon's current costume is a blue stylized toga with gold trim and an asymmetrical cape.
As an openly gay geek (and I use the term geek very positively), Dan is doing something incredibly important for the LGBT community. For one, he's a reminder that gay men are not some monolithic community and that the term "gay geek" is not an oxymoron. With all the negative representations of us in mass media, having him on "Who Wants to be a Superhero" is vital, especially for LGBT youth. Dan Williams and his creation Parthenon have my full support.