It did rival between Shigatsu wa Kimi no Uso and Naruto, but in the end, once again, the Naruto series wins a place. This time; favourite soundtrack. Naruto/Naruto Shippuden has SUCH beautiful music. It is pretty, it is quirky, it is emotional, all sorts of types. It's simply the perfect OST for a fantastic Anime like Naruto. Incase anyone does not know, they also have a series of games, which has just as wonderful soundtrack.
I'd say to everyone that if you haven't heard the best of their music, search up maybe a compilation of Naruto OST. In my opinion, it's worth it. Perfect background music while studying, feeling up or down, relaxing, etc.!