The version Steven Wilson played with his solo band on the "Raven" tour is incredibly epic. This particular version was played at the legendary Royal Albert Hall show: soundcloud.com/steven-wilson/radioactive-toy-rah
I heard this one when he came to Argentina, last May. It was one of the best experiencies i ever passed through. You feel the darkness and the tension in the middle section of the song, as the images pass behind them!
Having a hard time deciding whether I prefer the OTSOL or YHD version. OTSOL has a great solo in the middle, but YHD has a better and more detailed atmosphere and is more cohesive. At a push I'll probably go for the shorter YHD (i.e. original) version, but they are both great!