Hi,
In my opinion one person who can be a good candidate is Randazzo. He has done a lot, and I mean A LOT more than any of the others "candidates".
The only 2 persons that I really wish not to win is Massa who has a strong link with Colombian and Mexican narco cartels, Moyano, Barrionuevo... that says it all, and Scioli who can not even pave a road.
Cheers!