Before the US Open, I'd have said Nole - Rafa - Federer - Murray without a doubt. Now, I think Federer sneaks above Nadal for me: Rafa's been more consistent in the non-slam tournaments, but in the slams, Federer's got a win and a semi against 2 semis. Djoko has the same slam record, 1-1 h2h with Federer, but more wins in Masters as a tiebreaker puts him above Federer.