Nadal's chances on winning a HC slam aren't as low as everyone thinks.
He has the game to do it, Federer isn't really a danger to Rafa, Murray can beat Nadal but it depends on his form and unless Novak is in 2011 form again Rafa will have his chances against him as well.
Now he's not going to need to go through all 3 of them. I'd say he'd have better chances at the AO than the US Open though because of the court.
helloworld - "If Nadal wants to surpass Pete, he will need 34 slams, twice more than Federer to be in the same conversation with Sampras."