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
Open-world superhero game where an electric courier zaps his way across a quarantined city.

Execution · Practiced Mastery
A PS4 launch brawler starring a creature of relics that grows from tiny scrapper to building-sized titan.
inFamous leans Execution (Practiced Mastery); Knack 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.
inFamous
Aimed lightning and traversal under fire
Knack
Dodge timing matters as fragile small Knack
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
inFamous
Enemies follow fixed AI scripts
Knack
Scripted goblin and robot patterns
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
inFamous
Open city is static once explored
Knack
Relic chest contents vary slightly
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
inFamous
Power upgrade paths and karma route planning
Knack
Size mechanics and gadget crafting are simple systems
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.