Splenda which is the brand name for Sucralose seems to be the better sweetener. You can cook with it and it is sweet like sugar without the calories and the bad effects of sugar. Aspartame is made from amino acids, but some people have a reaction or don't like the taste of it. Also, you can't cook with it because the heat destroys the sweetness of it. It is cheap, so lots of products still use it. Since Sucralose went off patent a number of years ago, more and more products have switched over to it. This is good because now sugar free products taste as good as sugar rich products without the negative effects of aspartame and its inferior taste. Rebiana or Truvia is another compound that is sweet like sugar. I don't find it as sweet but some people like it.
Don't believe the hype that some sweeteners are natural or artificial. They all start with natural ingredients and processes them. Aspartame comes from protean and the two amino acids that make it are separated. Sucralose comes from sugar and is processed to make it hundreds of times sweeter than sugar. Truvia is an natural extract which is processed heavily. There were earlier studies that showed Truvia to be carcinogenic, but were later refuted. There are some who say sweeteners trick the brain and make you hungry. I never found this to be true. I think sweetness is a flavor and there are different ingredients which have this flavor. Some are really bad for you like sugar or corn syrup and some are fine like sucralose and truvia. Tricking the brain? give me a break.
WN