User blog comment:AYET/About the Busoshoku Haki armor/@comment-79.182.223.246-20121130134238

I think that a VERY strong BH could potentially block ANYTHING with a smaller haki - namely, Rayleigh can block ANYTHING out of the 8 items.

That is possible only because Rayleigh BH haki is at least as strong as the admirals, if not far stroner - which is PRECISELY the reason Rayleigh is so feared.

Think about it - Aokiji decides to freeze Rayleigh or Kizaru shoot him - it's game over. There is a way to negate the attacks - which is also how Akainu was remained unaffected by Marco's haki - only WB was strong enough to attack him.

I also think Teach has VERY strong Haki and coupled with TWO devil fruits he's seriously one of the most frightening opponents in OP.

Now, VERGO wouldn't be able to block Kizaru and Kuzan's attacks cuz Law and the Admirals have WAY stornger Haki. Law developed his haki in the time skip, much like Luffy which could also kick Vergo's ass. Zoro could also cut Vergo up if his Haki is stronger IMO.

Vergo is stronger than Ceaser cuz Ceaser might have a good DF, but no Haki. Luffy kicked his ass.