You wouldn't see me touching sucralose with a barge pole.
There's no way I'm freely ingesting chlorinated sugars. Sure, there's presently no evidence to suggest that your metabolic system can grab hold of it since the chlorine atoms have replaced the main hydroxy attachment points. Still, give it a while to become established and watch the next shock discovery that an hitherto unknown (which may only affect some) process in the digestive system is able to partially metabolise it, perhaps only in very small amounts.
However, therein lies the problem. It only does take very small amounts of chorinated carbon radicals to do an extensive amount of permanent damage.