Style. You probably can't describe it, but when you see it, you know it's what you like. All of us have a unique way at looking at the world around us, and for photographers, that means it affects the images we capture. Some may be more romantic than others, others may capture the excitement better, yet other specialize in photojournalistic style, allowing you to move as you wish on your wedding day with minimal fuss from the photographer. Although most wedding photographers have moved to the photojournalistic style these days, you may want a bit more of a traditional style. it's up to you. Study the photographer's portfolio and see how he shoots. Make sure you like the mood of his images, it will be the mood expressed in your final album.
My style mixes the modern photojournalism with the traditional. Why? You may want the fast paced and exciting look of the modern photojournalistic style, but most likely, your parents want some traditional portraits of you, your husband and the wedding party. There are very few, if any, weddings shot in complete photojournalistic style, there is always time for some posed images.