My favorite is saccharin (Sweet & Low brand, but you can get it in in boxes that have other brand names, too). My mother and sister do not like the after taste it leaves in their mouth, but I don't have that problem with it. Aspartame does not sweeten tea or coffee for me, whether it is hot or cold. When I cook with an artificial sweetener, I will add up to half the amount needed with sugar to get the sweet taste that I want. Stevia does not have the sweet taste I like and that I get with S & L. Splenda is one that my body does not tolerate well, so had to stop using it. Nearly all of the sugar-free products have gone to using it, so have to find the sweets that use something else or do without. I am diabetic, so that is unfortunate for me.