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
A dark side-scrolling puzzle-platformer about a fleeing boy.

Execution · Practiced Mastery
Sumi-e Zelda-like where a wolf goddess paints the world back to life.
Inside leans Execution (Practiced Mastery); Okami 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.
Inside
Precise platforming and timing.
Okami
Brush strokes and combat timing, forgiving
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Inside
Enemies follow scripts.
Okami
Demons follow fixed patterns
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Inside
No randomness.
Okami
Authored world with no randomness
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Inside
Puzzles have fixed solutions.
Okami
Brush technique use, upgrades, and exploration
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.