Russia won. Dima Bilan is IMMENSELY popular not only in Russia, but in most of Eastern Europe and anywhere with a sizeable Russian minority (such as Israel).
Talking with several close Ukrainian friends, they all said that nobody was voting for Russia (except for the eastern part, which identifies itself as Russian), not a chance in hell that they would, but rather for Dima Bilan. As Tunesmith said, his poster adorns the bedroom walls of 1000s upon 1000s of girls.