head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Optimization · Practiced Mastery
Series finale blending stealth with active battlefields and heavy cinematics.

Optimization · Practiced Mastery
An open-world action game about blowing up Nazi installations across a stylized black-and-white Paris.
Metal Gear Solid 4: Guns of the Patriots leans Optimization (Practiced Mastery); The Saboteur leans Optimization (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Metal Gear Solid 4: Guns of the Patriots
flexible gunplay alongside sneaking
The Saboteur
Climbing, driving and shootouts need moderate dexterity
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Metal Gear Solid 4: Guns of the Patriots
battlefield factions act on scripts
The Saboteur
Nazi alarm AI follows predictable suspicion rules
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Metal Gear Solid 4: Guns of the Patriots
mid-battle chaos mostly cosmetic
The Saboteur
Patrols vary slightly across the open city
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Metal Gear Solid 4: Guns of the Patriots
camo, gear, and route knowledge per act
The Saboteur
Plotting demolition targets and escape routes is the game
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.