Hall of Fame
Nadal won his first grass slam and first hard slam at about the same age Federer did. Nadal had adapted to, and won on all three surfaces by the age of 22. That is crazy fast.
The simple fact is hes less consistent off of clay, which was normal for 'clay courters' before Nadals time. But he was able to do what most others couldn't, and that was win on other surfaces.
I still believe him winning Wimbledon in 08 against Federer has got to be as big an achievement as anything in tennis before or since, all things considered.