head to head
StarCraft II: Wings of Liberty asks more than Halo Wars 2, and the gap is execution.

Execution · Grand Arena
Console-friendly RTS where leader powers, base management, and Blitz card battles test both micro and opponent reading.

Execution · Grand Arena
Real-time strategy where hands, reads, and build optimization all matter at the top.
Halo Wars 2 leans Execution (Grand Arena); StarCraft II: Wings of Liberty leans Execution (Grand Arena).
StarCraft II: Wings of Liberty leans clearly harder on execution.
Halo Wars 2
Leader power activation and Blitz card plays need precise timing
StarCraft II: Wings of Liberty
APM, macro, micro-control under pressure
StarCraft II: Wings of Liberty leans a little harder on reads, though the gap is small.
Halo Wars 2
Opponent leader choice and Blitz deck strategy must be predicted
StarCraft II: Wings of Liberty
1v1 ladder vs adaptive humans modeling you
Halo Wars 2 leans a little harder on variance, though the gap is small.
Halo Wars 2
Blitz card draw and resource crate spawns add moderate uncertainty
StarCraft II: Wings of Liberty
map spawns minor; mostly known
StarCraft II: Wings of Liberty leans clearly harder on optimization.
Halo Wars 2
Leader power cooldown sequencing and base slot assignment are learnable
StarCraft II: Wings of Liberty
build orders, economy curves heavily solved
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.