I prefer experienced professional wedding Videograhers. They usually know how to work their way around a professional photographer at a wedding.
However, it is a possibility that an inexperienced wedding Videographer might stand in the middle of the aisle in front of the photographer. It has happened that they will even tell a Photographer to get out of their way LOL.
I try to develop a good rapport with the Videographer as soon as possible so that we can strive to work together efficiently to get the best results for you.