Novel is a fictitious prose narrative of book length, typically representing character and action with some degree of "realism".
Technical book focuses on methodologies, advanced science, so to speak.
Informational book, from the word itself, we know that it constitute facts.
In my own point of view, these three are incomparable. Each is distinct from the other. I read technical books, informational books and even novels.
With your question, I would say that it is better to read the two latter books because each gives absolute fact, not hypothetical nor theoretical.
On the other side, as a novel-reader, I could say that though such book is just a mere fiction, it leaves me with a lesson. I am able to receive what the author addresses. I am able to feel what the writer wanted me to feel. If you would try to read one, you could be able to realize that the content is not just a typical story. Some part of it contains technical knowledge, too. And is also a very informative book. You see life's reflection while you read it. These, I presume, are the advantages of reading a novel.
To mention few, "Fatality" and "Lost Legacy" by Dana Mentink; "A Walk to Remember" by Nicholas Sparks. You can read one of these :)