The Cilandro 1-Light Wall Sconce by ET2 is a great option for perfect bath lighting. LampsUSA recommends two wall sconces of this variety, one on each side of the mirror. Why?
The quality and experience of the lighting is even (no harsh, unfriendly shadows early in the AM). The look is symmetrical, and that Hollywood "eye-light" is present when you look in the mirror.
Eye light is what Ingrid Bergman had when Humphrey Bogart said goodbye on the tarmac in Casablanca. It's what Debbie Reynolds had when Gene Kelly finally won her over in Singin' in the Rain. And it's what you'll get with two, eye level wall sconces, every time you look into the mirror.