Hmmm, not too sure about the sweetest tasting, but I can definitely say which I found was the sweetest smell when smoking: Chocolope from the Grey Area.
Was sitting in the smoking room at the fairly busy hostel, and could all of a sudden smell something so nice/pungent/sweet I had to go up and ask the person what they were smoking, walked up to the bar, and I could see the bartender's eyes light up and have that nose twitching moment also trying to figure out where the lovely smell was coming from.
