I am one sided when it comes to candles, because I make soy scented candles. 100% soy, soot free, pure fragrance and cotton wicks. I have been making them for 5 years now. I sell to friends, family, doctors offices and others that have been referred. I am getting ready to sell them here on YT! I just finished a cucumber-melon batch. Of course I have to burn one to make sure they are up to my standards and it smells wonderful. 
 
The bad thing about paraffin candles, yankee candles and others, they burn black soot which gathers on walls, pictures, etc. The soy candles burn soot free. The candles last longer, burn all the way down and the scent throw is stronger. If you notice, almost all paraffin candles burn down the middle, leaving excess wax. I will be doing a "Give Away" very soon, so be on the lookout!  
Simplylites Soy Candles...yummy!