I hate to say it, but if I had a vote, I think I would vote for Ovechkin at this point. I always think the Hart should be awarded to the player who means the most to his team, not necessarily the player who had the best season. Ovechkin has almost single-handedly brought the Caps back from the dead and put them in position to be the 3-seed (granted, it's a crappy division, but still). Take him away from that team, and they're probably in the lottery for the top draft pick.
On that same line of reasoning, I would give serious consideration to Anderson and Bobrovsky, since Ottawa and Columbus have no business doing as well as they are and so much of that success is due to goaltending. However, I don't like giving the Hart to a goalie, since they have the Vezina.