Weddings: Selecting Service Styles - as part of the Wedding series by GeoBeats. You have different styles of service, anywhere from past hors d'œuvres to buffet hors d'œuvres, a buffet station, multiple stations, tapa stations, formal sit down dinner or very casual buffet. All this comes into play based on your budget, the type of field that you want for your affair. Of course if you are looking for something fun and open, you may want more of a casual informal style versus a very formal style say, say as a sit down dinner, which is typically based for weddings or gala affairs.