Distance = G4 X is maybe 5 yards longer than the 0211. Have not hit the G4XF, but from what I have read, it is pretty close to the 0211 with the addition of the weights.
Sound = 0211 is louder. Not the worst I've heard by far, but isit is annoying compared to the Gen4.
Forgiveness = G4X is slightly more forgiving than the 0211. As for G4X versus G4XF, I've not hit the XF, but the G4X is much more forgiving than prior Xs. I doubt the XF is much better.
Summary, the G4X > G4XF > 0211.
Wow, just looked up the prices, and the Gen4 is $10 less than the 0211 now. That is an easy choice then.