After curing, the smelliest was for me the Double Grape. I made a trip by train and had really nicely packed some buds (like 4 plastic bags one in the other, apparently seal tight) and I had a smello-radius around me of 2 meters.
While growing I would say the Sour Livers wich was like Mephisto predicted a stinker. Hourray to my bullfilter !