head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is variance, and it is a single point.

Optimization · Light / Casual
A daily-ritual life sim where the only optional test is turnip economics.

Variance · Light / Casual
A painterly hidden-object game testing visual scanning patience.
Animal Crossing: City Folk leans Optimization (Light / Casual); Under Leaves leans Variance (Light / Casual).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Animal Crossing: City Folk
Watering flowers and fishing taps need no dexterity
Under Leaves
Tapping spotted objects requires nothing physical
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Animal Crossing: City Folk
Villagers are scripted personalities, not adaptive minds
Under Leaves
No opponent exists
Under Leaves leans a little harder on variance, though the gap is small.
Animal Crossing: City Folk
Daily events, fish and visitor RNG add gentle surprise
Under Leaves
Object locations are hidden until found - that is the game
Animal Crossing: City Folk leans a little harder on optimization, though the gap is small.
Animal Crossing: City Folk
Turnip trading and town optimisation exist but stay optional
Under Leaves
Systematic scanning is the only technique
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.