45 head-to-head comparisons built on the same evidence: every venue's public order book walked for what it actually costs to trade against, and every researched fact from both reviews side by side.
Six Australian venues publish an order book we can walk. This is the measured cost of crossing each one on a A$1,000 BTC buy, which is the number a fee schedule cannot show you. Top order is the share of that depth held by a single resting order: depth that is one order can leave.