Interviews like that are why I like Rafa. So down to earth. Like others said though, he is only saying what we already know. Roger is better all around. Nothing wrong with being the second best of the current era though. The fact that he stood up to Fed from the start is what made me a fan.
On court no doubt Nadal is very confident he can beat anyone but that's the way any top 10 player should feel IMO as the difference isn't that much(as Nadal himself said).