Yankee Candles has by far the best commerical candles available. They have perfectly balanced scents and their smell is never over powering or disgusting. Their have a large variety of scents, which are available in many different types of formats (votives, jar, pillars).
My favorite scent has got to be their various berry ones. Also, I love the ability to get a mix and match box of votives. Just a word of warning though, please do not leave candles near curtains with open windows or matches near children.
Also, this store can get very crowded during the holiday season.