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
A bite-sized 3D Mario that compresses Galaxy-style level design into linear handheld courses.
Knack leans Execution (Practiced Mastery); Super Mario 3D Land 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
Super Mario 3D Land
3D jumps and special-world remixes need clean control
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
Super Mario 3D Land
Scripted enemies and bosses only
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
Super Mario 3D Land
Star coin locations hidden on first pass
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
Super Mario 3D Land
Star coin collection and power-up management are solvable
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.