In my experience, teams rarely turn their game around mid-tourney and thus I think Finns are slight favourites here. Still haven't seen Russia, but the reports coming in from Hämeenlinna suggest that apart from couple forwards the team is playing badly. I expect a fairly high score, Finns will propably forecheck the Russian defenceman hard and Russian's PK has been horrendous while Finns PP is OK. OTOH, Jalasvaara-Ovechkin one-on-one gives me creeps, and on the whole Finns dmen after the top three of Lepistö, Kalteva and Kantee have been shaky, more so now that Korpikari is out.
To sum up. Finns win if they can score and don't play too passively. Russians win if their forwards can outscore Finns and if they can stay out the penalty box. Prediction: 5-3 Finns, special teams and goaltending being the decisive factor.