hi leslie, i am certainly not an expert but i have used both eo's and fo's. one is not better than the other. they are both very good for scenting candles. the benefits of using high quality fo's is that they are readily available, easy to use, and come in scents that you cannot duplicate with eo's. using eo's are generally used for their aromatherapy qualities. i have had very good luck with stronger scents such as lavender, patch, geranium, lemongrass etc.. citrus isn't that good. can have a fuel smell or hardly any throw unless anchored with a stronger scent, say, patchouli and orange. if you go the eo route, please read up on the safety and handling of them. if your not getting throw from the candles you have made, it could be the type of wicks your using, testing is fun as well frustrating. hth!!