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
Threading precise inputs through scripted guard gauntlets aboard a controlled and memorisable facility.

Optimization · Practiced Mastery
Choosing between three distinct playstyle routes through consistent guard layouts for optimal SMI scores.
Metal Gear Solid 2: Sons of Liberty leans Optimization (Practiced Mastery); Splinter Cell: Blacklist 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 2: Sons of Liberty
First-person aim and guard reaction windows demand precise input
Splinter Cell: Blacklist
Mark-and-execute and fast takedowns raise the physical ceiling
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Metal Gear Solid 2: Sons of Liberty
Guards radio for backup on scripted triggers, not adaptive tactics
Splinter Cell: Blacklist
Enemies react on scripted alert logic, not player-specific profiling
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Metal Gear Solid 2: Sons of Liberty
Alert timers and item pickups create some hidden-state tension
Splinter Cell: Blacklist
Patrol density and item placement are consistent across runs
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Metal Gear Solid 2: Sons of Liberty
Chokepoint memorisation and radar manipulation are learnable and repeatable
Splinter Cell: Blacklist
SMI scoring system incentivises optimal ghost, panther, or assault routing
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.