Right now I personaly feel Slutskaya and Plushenko are clearly the best.
Nobody has done a peformance since the 2003-04 season atleast that can even challenge the performances Slutskaya has done at almost every event in that last 2 years, COC last year, COR last year, COC this year, COR this year, Worlds free program last year. Cohen has not done a performance strong enough to challenge what Slutskaya is regularly putting out, at any event in the last two years. Kwan certainly has not. Ando is not strong enough in areas outside jumps to challenge Slutskaya, and if anything Slutskaya trumps her even on jumps these days, Ando still a great jumper but below her 2004 level in jumps IMO, and Slutskaya jumping better than ever. Arakawa is skating better this year but still not yet at the level to challenge Irina. Poykio, Liashenko, Kostner, Suguri, Sokolova, Csizny, Meissner, Nakano, Rochette, not even close. The only person who might be skating at a level to challenge Slutskaya anytime in the last 2 years is Asada, who is ineligable for the Olympics. The judges arent lowballing anybody, Irina was held up in the Europeans long program, and to a lesser extent in Worlds short program, but other than that she has dominated the other women through and through.
Among the men Plushenko may get generous choreography and interpretation scores, and skaters like Lambiel and Buttle are totally robbed on spin scores, but even with that Plushenko would be in a league of his own right now. His great basic skating, his command of the ice, his jumping quality, his consistency, his on-ice flair, set him apart from the inconsistent jumpers trying to chase him right now. Lambiel needs to start doing triple axels cleanly, not stumble slightly out of triple or quad attempts, and start doing level 4 spins that the such a great spinner should be doing rather than ridiculous level 2 spins. Buttle has a long way to go jumps-wise, he needs a solid quad, and he does not even have a shaky quad now, his other jumps are more inconsistent than last year. Sandhu has bombed the short program at almost every event since doing it at the 2004 Worlds, he needs to start doing rock-solid shorts to even start making the progress he needs to come close to Plushenko. Weir has a long way to come back to even reach his 2005 level right now. Lysacek, Lindemann, Joubert, dont even come close now. Takahashi and Oda arent ready to take on somebody like Plushenko yet.
I agree that Totmianina/Marinin are overrated. Their lifts are far overscored, and the level 4s for them are a joke. Their PCS are inflated considering the lack of emotion, relating to each other on the ice, relating to the music they are skating to. Pang/Tong, Savchenko/Szowkowlsky, and Petrova/Tikhonov should be able to challenge them if they are not at their very best(which they were not at COC for example)but the judges probably wont allow this.
Navka/Kostamarov I have no problem with being on top. They are a beautiful team with wonderful lines, unision, edges, technique, interaction between the two, and sense of drama, on the ice. Belbin/Agosto probably wont go anyway, they probably should be closer with the judges than they are if they were able to go, but it probably wont matter. The other teams are not at the level to challenge them. Denkoyva/Stayvinski make things like sloppy too often, Grushina/Goncharov are slower and their basic technique is not as good IMO,.