Harry Potter vs. Percy Jackson

I've read both books, & they are both really, really awesome, but I have no idea which one I think is better. They are both the best books in the world, but I have absolutely no idea which is best. What do you think? Please vote on the poll on the side to let us know, or if you want to explain why you chose your answer, ar just want to tell us something, we would LOVE if you left feedback and comments!