Nadal wins a record 33rd Masters 1000. 40-3 overall match record this year, one of those 3 defeats was to Cilic in the Aus Open when he was injured, another was Thiem when he was knackered, and to Djokovic indoors which he very nearly won. Really is in the form of his life right now.
The only problem with Nadal is we know he's injury prone, and his schedule and commitment to play in everything (he's planning to play Davis Cup this year), one feels he could pull an Andy Murray and blow up at some point trying desperately hard to accumulate as many weeks as he can at number 1.