Regarding the Yankee candles--can you smell their intended scent in the air whilst burning them? Any candle I've ever bought requires hanging my head over the flame (singed brows) in order to get a whiff of the scent.
Yankee Candles are one of the few that you can relly smell all over the house. Right now I have a medium jar Red Apple Wreath scent burning and my whole house smells like it. It is absolutely worth the money.