It's a fool's errant to attempt -- or even imply -- to be completly objective. Meaning that we all let our biases color our subjective "objectivity." There's no such thing.
That being said, I think we've all been given plenty of reasons and/or objective facts as to why Nadal's currently the run-away second best player in the world. Thus while upsets a la Muller/Roddick can and obviously do happen, on paper, this is Nadal's match to lose.
And IMNSHO, that's just not gonna happen.
Rafa in three -- or, at worst, in four.
Mind you, Nadal's just getting rid of the jitters and warming-up to The Open. Expect to see a much improved Rafa on Saturday.
Hey, I could be wrong -- certainly wouldn't be a first -- but no way, no how, Blake's in Nadal's league. And I'll still be saying that even if he manages to pull off the (unlikely) upset.
BTW, just as in RG, I'm a bit suspect on a draw that consistently manages to pit Rafa against popular players from the host nation. And no, no tinfoil in my cap.