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

Optimization · Pure Optimization
Gentleman puzzler solves a village full of standalone brainteasers.

Optimization · Pure Optimization
Character-driven turn-based JRPG with a deeply customizable orbment magic system.
Professor Layton and the Curious Village leans Optimization (Pure Optimization); The Legend of Heroes: Trails in the Sky leans Optimization (Pure Optimization).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Professor Layton and the Curious Village
Stylus taps only; no dexterity pressure at all
The Legend of Heroes: Trails in the Sky
Turn-based menus only
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Professor Layton and the Curious Village
No opponent, adaptive or otherwise
The Legend of Heroes: Trails in the Sky
Scripted encounters, no adaptation
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Professor Layton and the Curious Village
Puzzle answers are hidden until reasoned out, then fixed
The Legend of Heroes: Trails in the Sky
Minor turn-order and drop randomness
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Professor Layton and the Curious Village
Every brainteaser has one clean solvable answer
The Legend of Heroes: Trails in the Sky
Orbment quartz setups and turn-bonus manipulation
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
Professor Layton and the Curious Village →
full breakdown
The Legend of Heroes: Trails in the Sky →