She deserves special care as everybody’s attention will be for her. Choosing the right dress is really important and it should suit the bride character and the wedding style. There are  many different fabrics and styles:
Mermaid, hugs the hips, then flares and has a little train
Dropped, made of light fabrics sliding softly along the figure
Ball-gown with a fitted bodice and full skirt
Empire with high waistline and a slender skirt
Redingote unbroken line with sheets skirt and fitted waistline
Palloncino, curled skirts with swelled and doubled over hem, often with a band.
Column, it looks like an evening dress, with spaghetti straps, deep neckline and light fabrics.

The choice of accessories and shoes is really important as they have to be coordinated with the dress.