I find that the normal lens on a 35-mm camera to be the most valuable lens for my style of photography. The beauty of a normal lens is that it gives me an image similar to human vision. Short lenses exaggerate the perspective and can distort the model’s features creating a "special effect", on the other hand, the telephoto lenses flattens the perspective and there is a loss of depth in a frame. Although the telephoto lens is good choice for close-ups and reducing background information when needed.
I personally don’t use a zoom lens, but this is a tool if you are restricted in movement and there is a need to quickly take a picture. When I am working with a model, I am not restrict in being in one area, so I can physically moving around the model and moving back and forth. As a matter of fact, this is another beauty of the lens is I have to visually work harder before I take the image.