I found an article that concisely highlights the debate over artificail sweetners. Which ones are OK and which are risky to long term health. The one conclusion is that while all of the research is inconclusive that the artificial swettners are deemed to be "safe" by the FDA and that all scientists agree that they are better than sugar when it comes to leading a healthy life.
http://well.blogs.nytimes.com/2012/06/11/which-sweetener-should-you-choose/
