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.

Execution · Pure Mechanics
A PS4-era Killzone where a Shadow Marshal and his OWL drone fight through a divided Helghast city.

Execution · Competitive PvP
An arcade wrestling fighter testing move timing and reading human opponents.
Killzone Shadow Fall leans Execution (Pure Mechanics); WWF In Your House leans Execution (Competitive PvP).
Killzone Shadow Fall leans a little harder on execution, though the gap is small.
Killzone Shadow Fall
Standard FPS aim and movement ceiling
WWF In Your House
Timing strikes and special-move inputs decides matches
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Killzone Shadow Fall
PvP modes reward predicting human players
WWF In Your House
Human opponents can be read in multiplayer brawls
WWF In Your House leans a little harder on variance, though the gap is small.
Killzone Shadow Fall
Some open level routes and spawn noise
WWF In Your House
Some randomness in move outcomes
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Killzone Shadow Fall
OWL drone usage and loadouts optimize cleanly
WWF In Your House
Knowing finisher setups and combos underpins wins
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.