I voted for the R35 which I admit is the car I would least like own out of the three however I do think it is the best.
Generally speaking an R35 in Australia costs somewhere around 10% the price of a Veyron or Pagani and for that you get what I would think is about 99% of the car. Admittedly you won't get the same reactions from other motorists and people will know you're only well to do rather than super rich, but on a racetrack there's no reason you won't be alongside the Zonda and ahead of the Veyron.