Marine Le Pen is definately not her father. Some of her speeches are actually well thought out and interesting.. she is no worse than Sarko....but she is definately not a world class politician, nor is she a Billionaire, so she won't be able to pull of any of Trumps stunts.
I would probably prefer a Marine Le Pen to a Hilary Clinton, Hilary is far more dangerous character...
I doubt that MLP will get through though, it's far more likley to be Valls, Macron or Fillon. Although Polls have no real standing the Wikipedia poll is interesting and probably close to the truth..
It's impossible to know what way any potential hackers would swing as the hacking could come from anywhere and anyone with sufficient political/personal interest... Bascially any 1st world power... ( USA, Israel, Russia, China, UK)