EOS Teach and Luffy will create the PK Tier, imo, potentially mid-high diffing a Mid Top Tier.
Teach most likely is not the last fight Luffy will ever have so Teach reaching unparalleled levels is unlikely.
Akainu has better chances of being last enemy Luffy will face and he is equal to other admirals so him belonging to special tier is also a fabrication.
Another thing, which I suspected for long time is that, Whitebeard's performance in MF war was exaggerated. He crushed Akainu effortlessly but Akainu had plot armor to survive and WB had plot purpose to die. Oda could allow himself to portray WB crushing Akainu but the actual power gap is probably much closer among top tiers than suspected.
I would say, Kaido is indeed the strongest in this era, he is in his peak and has a DF which puts his physical abilities above others.
Shanks and Teach are in their prime as well but they arent Kaido's level.
Admirals may be closer to Shanks and Teach than expected.
We already forgot that he and Garp - two men alone - crushed Rocks, Kaido, Big Mom, WB, Shiki etc. back at God's Valley?
@TheoryKing It isnt.