User blog comment:AYET/About the Busoshoku Haki armor/@comment-5640399-20121203194452

I do undrstand what you're saying, but I think of BH a bit like reiatsu in Bleach. Sorry, not a huge Bleach fan but quick eplaination, if your body is giving of more reiatsu than your opponents blade, it can't cut you. So, if your BH is stronger than what you're attacking, it's either stopped dead or you knock their ass flying. I think Law just through his all into that slice, and I also think you have to consider that up until now we've only seen people partially cover their bodies in BH, Vergo literally sheathed himself in it then! Maybe that made it a little less potent.

Finally, I think Rayleigh, and indeed Shanks (I view them as equals in Haki, their fighting styles, their fashion, everything is very similar with them, so...) they would easily block everything except Kuzan and Borsalino's attacks. Both are admiral level (obviously...) and therefore would pack a serious punch. I think they could still block or deflect it, but it would take skill and energy, wearing them down. I think Vergo's bamboo would give them a little fun to play around with, but ultimately they could crush him, though not with HH.