Well, if you do any kind of search on the 'net you will find a good number of sites pointing to the evils of Aspartame. You will also find a number of fairly reputable organizations (the FDA for example) that think it's perfectly harmless. The very fact that there is such controversy leads me personally to err on the side of caution.
Too much of anything is never a good thing, but sugar in moderate quanities is perfectly natural, even necessary to our bodies daily functioning.
Everyone is of course welcome to consume whatever they like.
Edit: The FDA has been known to make mistakes.This comment was edited on Oct 19, 16:16.