I shy away form using certain terms regarding One Piece because they're not well defined. Such as Admiral Level & New World Pirates.Considering not all tiers are created equally & that's even between High Tier characters (my defining term).
Also due to story some characters get more focus & by extension more feats. While others are reintroduced (Rob Lucci). Which could easily shift the balance of some tiers, if characters are limited to their titles & status.
mr_ingenuity's comments