would like to book VIP seats, or Business or First on the G16 Shanghai-Beijing. Which class is the very best on this train please?

My husband and a friend will be traveling by train from SH to Beijing at the end of May 2013. They would like to have very good accomodations, as well as good view of outside countryside and cities. Your site only proposes 1st and 2nd class tickets. Are there others as well? Thank you for responding. Patricia