I've had so many people recommend 'The Alchemist' by Paulo Coelho that I feel like the time has come to actually read it? It sounds like an awesome read and I've never tried any of Coelho's work before.
'The Love Interest' by Cale Dietrich sounds like a lot of fun! The concept of two boys fighting to date the same girl and falling for each other pokes fun at a lot of common tropes in YA romance. Also, throw in some spy-action and you might be onto a winning formula!
I read and adored 'Vengeance Road' such a long time ago, that I'm upset that I haven't started 'Retribution Rails' yet! That cover is absolutely stunning and I know that the story will definitely be up my street!