Rochette has only 325.38 points, and both Alissa (169.01 for one event) and Sarah (163.69) are on a pace to beat that, even off fourth place finishes. If they skate well enough to win CoR, they will most likely be way ahead of Joannie's point total. (Of course, they can't both win.)
It was actually Sarah who scored 169.01 points at SA and Alissa scored that 163.69 at SC. (Also Alissa's personal best score is lower than Sarah's total score at SA. It's very close but it's "only" 168.32.)
The Ladies:
Yeah, this is a relatively difficult competition to predict, especially when it comes to the bronze medal. I also think that Sarah and Alissa, most likely, take the two first medals, in that order (i.e. gold for Sarah, silver for Alissa), and Sebestyen is my guess for the bronze.
I especially believe in Sarah because she has skated so well in all her last competitions (Euros, Olys, Worlds, Japan Open and SA). Though she has sometimes doubled or singled some of her jumps, she hasn't fell in any of those events. I have also read a couple of her interviews published in two Swiss newspapers around those competitions and I have to say that she really seems to have a very good and strong attitude at the moment.
True, as we have already seen, for example with Mao Asada at SA, Lambiel at SC and Rochette at TEB, anything can happen.
The men:
Well, I just hope that Klimkin and Berntsson skate well.