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
A long parade of self-contained logic puzzles wrapped in a mystery story.

Optimization · Pure Optimization
Serene puzzler where rewinding time untangles dioramas of childhood memories.
Professor Layton and the Diabolical Box leans Optimization (Pure Optimization); The Gardens Between 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 Diabolical Box
Stylus taps - zero dexterity demand
The Gardens Between
Only scrubbing time forward and back
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 Diabolical Box
No opponent; a parade of standalone brainteasers
The Gardens Between
No opposition exists
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 Diabolical Box
Puzzles are fixed; only their first encounter surprises
The Gardens Between
Deterministic dioramas
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 Diabolical Box
Each brainteaser has one clean logical solution to find
The Gardens Between
Each island is a clean time-manipulation logic puzzle
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.