"Democrats hands down. ...but also because of the more liberal stance on vices which creates an atmosphere the Mafia has always been ready to exploit"

I guess it all depends on how you look at it IvyLeague. Democrats are more tolerant of vices, but that also means that they are likely to become legalized or to attract others who wont be afraid of watered law enforcement. On the other hand, puritans tend to ostracize things from mainstream society or outlaw them all together. This leads to black markets becoming more common and profitable and groups like LCN who are willing to get their hands dirty to get people what they want can thrive. Just think, which social movement was better for the mob overall: prohibition or the push to legalize gambling. The former lead to millions upon millions in earnings. The latter cut deep into their pockets.