Intuition can be a key tool to a seasoned nurse. 
I suppose, but research and concrete knowledge is more beneficial as it is a very hands on and physical occupation, especially when the health of others are in their hands.
Those are very beneficial tools as well but sometimes experience plays a large part in patient outcomes. 
That is true. There are many situations where experience can strengthen your skills compared to just learning it from a book.
Skills can be difficult to learn from a book. Hands-on practice is what it takes to perfect those skills.