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 PS4 launch brawler starring a creature of relics that grows from tiny scrapper to building-sized titan.

Execution · Practiced Mastery
Storybook N64 platformer where baby Yoshis eat fruit to finish pages.
Knack leans Execution (Practiced Mastery); Yoshi's Story 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.
Knack
Dodge timing matters as fragile small Knack
Yoshi's Story
Gentle platforming with light egg-throw precision.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Knack
Scripted goblin and robot patterns
Yoshi's Story
Scripted enemies throughout.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Knack
Relic chest contents vary slightly
Yoshi's Story
Fruit placement is fixed per level.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Knack
Size mechanics and gadget crafting are simple systems
Yoshi's Story
Melon routes for high scores are quickly mapped.
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.