User blog comment:Safari1237/best haki/@comment-3425840-20110724161526

I think its Rayleigh=Shanks>Whitebeard. Because as the 1st too are not devil fruit users they has to rely on haki very much and thus train and use it more than Whitebeard. Rayleigh has the experience advange over Shanks, but Shanks seems to be gifted about haki.