U-Pick: Character Most In Love With Him/Herself?

Here's how this feature works: each week I'll post a categorical superlative (e.g. "most sadistic villain" "crankiest father figure" "protagonist you would most like to slap some sense into" etc.) and list a few choices of characters from YA books in a poll. You get to pick! The poll will run for a week, and then in the following post I'll update with the name of the winning character. 

That's right, it's time to bring back the U-Pick feature! The last one was for the Most Endearing Animal Sidekick in YA, and it is probably no surprise that the winner was...

...Hedwig from Harry Potter!

This time around, the question is: which YA character is Most In Love With Him/Herself?

There are lots of choices here, so vote below! (If the book is part of a series, I've just listed the series name. You can decide which book you want to base your vote on.) There's also an option for a write-in vote if your pick isn't listed. If that's the case, please choose "other" and then leave the character's name and book title in the comments :)