There is the one main difference I see that lies in their editing. We were never given an idea about where Sophie was heading and what her thoughts were for down the road. It was always just "sticking with the plan." I think this difference is largely due to the negative comments about Sophie's horrible edit. I had to listen to her brilliant strategy in post-show interview to get a sense about the caliber of player that she was. It could be that Kim experiences the same social dynamics that were present with Sophie, and the editors have chosen to edit Kim in this same manner (since we already know they have a difficult time editing women), but have chosen to give the viewer more insight into her strategy than they did with Sophie in order to create a more memorable and understandable win.
It is also interesting that Sophie has endorsed Kim as her pick for the winner.