head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.

Optimization · Mind & Math
Console-first RTS translating Halo's factions into streamlined base-and-army battles.

Optimization · Mind & Math
Counter-picking units and out-planning opponents with your voice instead of clicks.
Halo Wars leans Optimization (Mind & Math); Tom Clancy's EndWar leans Optimization (Mind & Math).
Halo Wars leans a little harder on execution, though the gap is small.
Halo Wars
Controller macro is deliberately light
Tom Clancy's EndWar
Voice commands remove most mechanical demand by design
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Halo Wars
Versus humans, build choices are mindgames
Tom Clancy's EndWar
Multiplayer theatre battles reward predicting enemy unit commitments
Halo Wars leans a little harder on variance, though the gap is small.
Halo Wars
Scouting hides enemy composition early
Tom Clancy's EndWar
Fog of war hides compositions until scouted
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Halo Wars
Build orders and counter-unit economy
Tom Clancy's EndWar
Rock-paper-scissors unit counters and upgrade economy are the solvable core
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.