B&W vs Colour
My general rule of thumb, when it comes to b&w vs colour wedding photographs, is if the image is about colour, or colour is a predominant feature in the image, then it will probably remain in colour.
However, if an image has a strong emotional element or contains human interaction, then I tend to see it from a Black & White point of view, eliminating the distraction of colour and concentrating on the ‘moment’.