Well, I wouldn't say neither Yuna nor Caro made mistakes. They did, but on the whole, they still should have won over Adelina who also made mistakes and basically is an inferior skater.
Ok lots of differences in opinions. From the various posts, it appears the differences stem from that we all look at skating from different angles and put different emphasis on different aspects of the overall package. Will start on the TES since it is more striaghtforward.
Jumps wise, it is clear that the base value goes Asada>>Sot>Caro>Yuna. No way Yuna's 6 triple will match up against 7 triples if all goes clean. GOE on jumps reward different aspects, be it difficult / creative entry, height, ice coverage, flow out, speed etc. All the 4 ladies mentioned have strengths in different aspects. Yuna has good speed and distance, Caro better outflow and running edges, Sot has the biggest jumps and difficult entrances. Mao has difficult jumps but suffer from UR, wonky landings. Thus based on their actual execution in the FS, I do think that jump wise, Sot>Caro = Yuna. Of course Asada got more points simply from the sheer base value. Spin wise, it is obvious that Sot>>Asada>Caro=Yuna. Steps wise, Caro>>Asada>Sot>Yuna. TES wise, thus I am satisfied that Sot>Asada>Yuna>Caro. In fact, I dare venture that Yuna and Caro's TES are about equal since Yuna's better overall jump GOEs are enuf to make up for lacking the one 3Lo compared to Caro.
PCS - this is where it gets scarily controversial. I will break them down for better clarity
SS: Sot has the best attack and speed. Yuna and Caro have both somewhat slowed. Thus SS wise, I am ok that Sot>Yuna=Caro>Asada. In fact, I think Yuna's scores were slightly generous as she spent most of them time skating in one direction unlike her greater speed and variations in Vancouver.
TS: None of the ladies were that great in this. Caro got slightly lowballed cos her programme makes more use of upper body movements rather than the skating moves in between elements. If I have to put my money down, then its Yuna>Caro=Asada=Sot
CH: This one is subjective. I am hard pressed to say but I like Yuna>Caro=Asada>Sot
PF: Caro clearly win hands down on this. Asada was good but I felt it more as a pride and demo session rather than selling. Yuna connected well with audience while Sot made clever use of hometown advantage. I am not big fan of the home advantage thing though as this cannot be replicated outside Russia. Thus for me Caro>>Yuna>Asada>Sot (timing were off, raw)
IN: Subjective as well. But I really love how Yuna put up a more poignant performance compared to her SP which left me cold. Yuna>Caro=Asada (I love how she skated for pride)>Sot
Thus PCS wise, I will have Yuna and Caro ~74, Asada about 72 and Sot at best ~69.
Overall, the LP will work out to be roughly Asada 145, Yuna 144, Caro 143 and Sot 145. In this case, the technical content of Asada and Sot more than make up for the PCS. If you factor in the SP though, thats where the controversy hits. I think Sot was also overscored PCS, although I will agree with her TES. I will say that at most her SP PCS is in 32, which puts her at total ~71. I think in the SP wise, Caro and Yuna were about equal, while Asada clearly bombed.
Thus in my opinion, the overall medal placement should have been 1. Yuna; 2. Caro; 3. Sot. Asada is out but if she scores ~200++, she should be somewhat in 5th. This Sochi olympics to me is a clear case of PCSflation where Sot and Yulia were concerned and to a smaller extent Gracie Gold. Gold is good but she isn't that good yet. Her PCS should not even be more than Wagner.