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
Classic football execution - touch, timing and finishing - with human mind-games on top.

Execution · Pure Mechanics
Squad shooting against scripted hordes with light class-loadout decisions.
ISS Pro Evolution 2 leans Execution (Pure Mechanics); Resident Evil: Operation Raccoon City leans Execution (Pure Mechanics).
ISS Pro Evolution 2 leans a little harder on execution, though the gap is small.
ISS Pro Evolution 2
First-touch control, through-ball timing and finishing decide matches
Resident Evil: Operation Raccoon City
Third-person aim against zombie and soldier swarms carries the game
ISS Pro Evolution 2 leans a little harder on reads, though the gap is small.
ISS Pro Evolution 2
Versus humans, baiting tackles and disguising passes matters
Resident Evil: Operation Raccoon City
Versus modes add human prediction; campaign AI is scripted
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
ISS Pro Evolution 2
Slight bounce and keeper randomness within a deterministic sim
Resident Evil: Operation Raccoon City
Infection mechanics and spawn chaos add mild unpredictability
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
ISS Pro Evolution 2
Formation and player-role knowledge gives a modest edge
Resident Evil: Operation Raccoon City
Class abilities and loadouts are a shallow solvable layer
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.