Which is the better swing and why?

[nevets88]

I saw this in my Twitter feed and thought the right was better but kind of cheating because usually right photo is improvement for many instructors. So the why, w/my limited knowledge is head is a little steadier, less translation back, deeper hip turn, on the downswing, more weight forward. Also, at 5, looks like his weight is going away from target a smidgen. I've since found more pics of the after swing, will post them later.