naw, not yet. nadal has more majors, career slam, better H2H record in slams (including slam finals) against djok. but what really keeps nadal ahead of him for me is nadal's quasi-dominance of federer when federer was still basically at his apex. but it may just be a matter of time before djok passes them both. I have no idea who is going to step up and challenge him. The best bet is Nadal regaining form because there is nobody else. Wawrinka has shown that his style of play can bully Novak but you can't trust him to consistently factor into the slams. Del Potro is no more. Murray is like a worse version of Djoker and can't beat him. There is nobody younger than Djokavich that seems like a great player. Dmitrov turned out to be a mirage. Nishikori can consistently win matches against inferior players. Roanic sucks. Sadly our great hope is Nick Kyrios and there is no way he will mature mentally to the point where he could beat Novak over 5 sets.