Smell wise it was the 3D, I got it curing right now in jars and everytime I burp the jar it smells like a can of fruit cocktail. Everyone that has smelled it has been blown away, the russian is probably second its got a really sweet pineapple smell to it although I doubt it will smell like that once cured.
The kings kushes smell like a cat pissed on a skunk that was sitting on something that smells real musty, the cheese smells well pungent with some some sweet undertones, and the sour cream is def sour and diesel smelling.
Of course thats just my opinion on which ones smell best, I've got some buddies who will prefer the stinkier shit every single time, I'm more of a fruity/sweet smelling strain fan.