Probably straight ticket Communist since 1991, Yeltsin in 1991. In a Putin vs Medvedev matchup I would vote Medvedev simply because he isn't a moralfag like Putin.
They won't run aganist each other. They are from the one St. Petesburg team. Most of Russian officials and federal ministers worked with Vlad for 10-20 years before the work in Moscow 
Well yeah because Medvedev is a puppet and would get a rearranged face if he tried, but I'm saying putting realism in a closet for the time being, who would you prefer? Who do you like better? If I'm not mistaken, you live in RU don't you?
Did you vote for Emperor Putin?
Even Hitler?
