Well, you can’t really have just one best of these… there are too many writers and too many styles.
Still, Georgia Dzurica of Atlanta stands out as one of the best writers I have worked with. Way back when, when I worked as the associate creative director of a corporation, I hired Georgia to freelance on our consumer magazine. She always did a superlative job. I would move money around to hire her, because she wasn’t cheap but she was that good.
In the same vein, Jami Stall of Indianapolis was another very good writer I relied upon to produce articles for our company’s consumer magazine. Today, she is editing an online magazine, so I do not know if she accepts freelance assignments. But if she does and you need an entertaining story for your readers she is well worth the price.