I love candles, especially quality ones that have a "true" smell. You can tell a huge difference in good candles vs. cheap ones.
Yankee is very VERY good, but also rather expensive, although they last a long time.
I have been getting into soy wax candles. There is less soot with them.
Also, there is a very neat candle company that has a wood wick so when you burn it, it crackles like a fire.
Weird as I am, I will only burn certain candles at certain times of the year. Aside from the obvious evergreen and candy cane around Christmas... apple only in the fall, flowery scents only in the spring, fruits such as melon and pineapple in the summer and for the fall, spiced cider and cinnamon.