Most Helpful Guy
There are no specific books genderwise i believe, anyone can read whatever he/she wants.. What I would suggest as per your age is..
Jonathan livingston seagull - Richard Bach
The day of the jackal - Frederick Forsyth
And some dan brown if you like suspense thrillers with an out-of-the-world plot.
Most Helpful Girl
The Divergent series (Divergent, Insurgent and Allegiant) by Veronica Roth
Twilight saga by Stephenie Meyer
The Book Thief by Marcus Zusak
The Harry Potter series by J. K. Rowling
Beautiful Disaster by Jamie McGuire
The Princess Diaries by Meg Cabot