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
Stealth route planning through scripted guards with a forgiving execution floor.

Optimization · Practiced Mastery
Painterly cinematic puzzle platformer about a girl and her cat-like companion.
Assassin's Creed: Liberation HD leans Optimization (Practiced Mastery); Planet of Lana 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.
Assassin's Creed: Liberation HD
Forgiving parkour and counter-based combat
Planet of Lana
Gentle platforming and chase sequences
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Assassin's Creed: Liberation HD
Guard AI runs simple fixed routines
Planet of Lana
Machines follow scripted patterns
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Assassin's Creed: Liberation HD
Patrols and objectives are static once scouted
Planet of Lana
Fully authored puzzles
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Assassin's Creed: Liberation HD
Persona system and stealth routing are the real layer
Planet of Lana
Companion-command puzzles have single solutions
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.