The ending? It's so...so...
...so reminding me of Disney's Hercules.
Seriously. Percy is offered the chance to be a god, and he turns it down for a girl. Yup. Except it's Annabeth, not Meg.
Oooookay, technically it's not just for Annabeth, it's for his other friends like Grover and Nico and whatnot, but still.