“Notebooks,” says Ana Reinert of the office gear site The Well-Appointed Desk, “are very much like cars. My perfect notebook is going to be very different, like my choice in car, from someone else whose needs or line of work requires different parameters.” And notebooks are as varied as our vehicles: They come in different sizes, shapes, materials; different bindings, paper weights, line widths (or squares, or no lines at all), hard cover, soft cover, treated paper, untreated paper—and that’s just on the inside. To recommend a single notebook for everyone would be to recommend a notebook to nobody.
This article then goes on to cover every possible option out there and give some great recommendations. A solid link if only for reference alone.