As for the idea the Chinese fed. would not let Sui & Han defeat the Zhangs I think just the opposite. The Chinese fed. are already looking to the future and will want to push their best hopes for the 2014 and maybe 2018 Olympics forward now. The Zhangs are no longer the Chinese federation favorite, in fact they now have probably fallen into the middle stepchild syndrome that Pang & Tong dealt with for many years. Pang & Tong are still expected to return at some point, be it for Worlds this year or sometimes by Sochi. Sui & Han are the young hotshots. The Zhangs failed to win a major title after many years of top support, and now have been dropped in the standings based on their 2010 results. I doubt they are who the Chinese federation are banking their hopes on at this point.
I am also surprised nearly everyone is picking Oda to win. I agree with the previous poster who said his stock is falling as well. Kozuka is the top Japanese man now, and Hanyu is their rising star. Takahashi is a former World Champion trying to get back in form. Oda is a veteran who hasnt medaled at Worlds yet. I also could see him off the podium here with Hanyu, Gaschinski, and Abbott all capable of beating him, although I think Oda will beat Abbott. Both Abbott and Oda will be hard pressed to make their World teams this year.