based on accomplishments it is very true! and, as said, in the hardest competition as well.
HC
slams - no1
slam Fs - no1
WTF - no1
masters - no1
big titles - no1
W% at slams - no1
W% overall - no1
CC
slams - no 3-6
slam Fs - no 2-3
masters - no2
big titles - no2
slam W% - no3
overall W% - no4...