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

Execution · Practiced Mastery
An open-city sequel deepening freeflow combat and predator gadget play.

Execution · Practiced Mastery
A compact Yakuza action brawler following Kiryu's covert agent years.
Batman: Arkham City leans Execution (Practiced Mastery); Like a Dragon Gaiden: The Man Who Erased His Name leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Batman: Arkham City
Combo chains and counters need timing.
Like a Dragon Gaiden: The Man Who Erased His Name
Brawler combos, dodges and gadget timing
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Batman: Arkham City
Enemies scripted, not adaptive.
Like a Dragon Gaiden: The Man Who Erased His Name
Scripted enemy AI
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Batman: Arkham City
Fixed encounters and challenges.
Like a Dragon Gaiden: The Man Who Erased His Name
Deterministic encounters
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Batman: Arkham City
Gadget combos and challenge maps learnable.
Like a Dragon Gaiden: The Man Who Erased His Name
Upgrade economy and learnable boss patterns
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.
full breakdown
Batman: Arkham City →
full breakdown
Like a Dragon Gaiden: The Man Who Erased His Name →