Agave, Sucralose, Asulfame potassium, Sugar, Honey, Aspartame, Saccharin, Stevia, which to choose from?
Here is my advice: as a whole we need to cut down on sugars and sweeteners, and get used to things not tasting so sweet.
All sweeteners do undergo processing to make them palatable, and easy to sell and use.
The recommendations are to get no more than about 6 teaspoons added sugars in your diet per day! That applies to table sugar, honey, maple syrup.
As far as the other sweeteners,using them sometimes is ok but remember that they are all still processed. All are generally recognized as safe by the FDA. Agave is chemically like high fructose corn syrup (yes, really). Just remember that it still contains high amounts of fructose. Some people do like it for it's lower glycemic index than sugar (especially for diabetics).
My advice here: choose wisely. Using the artificial sweeteners sometimes is ok. But wouldn't you rather lose some of that sweet tooth that keeps you wanting more and more sweets?
Can't we just be satisfied with a little sweetness from honey or table sugar? Start cutting down by 1 teaspoon per day, a week at a time. Read your labels. 5 grams of sugar is equivalent to one teaspoon of sugar.
Just some sugar for thought here!