head to head
vs
Call of WarvsHearts of Iron IV
Call of War leans Optimization (Mind & Math); Hearts of Iron IV leans Optimization (Pure Optimization).
Call of WarHearts of Iron IV
Axis by axis
Execution1 vs 2
Hearts of Iron IV leans harder on execution: pausable, micromanagement-heavy
Reads6 vs 4
Call of War leans harder on reads: Human players form alliances and bluff in real time
Variance3 vs 3
Even - both lean on variance about the same.
Optimization8 vs 9
Hearts of Iron IV leans harder on optimization: division templates and production solved
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.