I believe it's only your own propaganda which makes you think that Putin (or Russia, or whatever) does actually support Trump. As far as I remember Russian media never supported a single US President candidate for years.
Russian press is always something between negative and neutral. Yes, Trump is much closer to "neutrality" than Clinton, but it's not a sign of support of any kind. That rather shows that Trump is not taken seriously as possible next POTUS. And critics of Clinton is rather a preparation for the next step of continuing "cold war". But in unlikely case that Trump will be elected, it will take only few weeks to start criticising him in Russian media.
And considering real benefits of electing one of them, I think that Putin is already much pleased, because both Trump and Clinton seem to be more promising for Russia than Obama himself. They both are equally incompetent, short-sighted and reckless. That's exactly what Putin looks forward to.