head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Variance · Light / Casual
A psychological thriller visual novel investigating ritual murders in post-earthquake Shibuya.

Variance · Light / Casual
A live-action FMV thriller steered through touchpad choices and gestures.
Chaos;Child leans Variance (Light / Casual); Erica 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.
Chaos;Child
No dexterity component
Erica
Touch gestures with no skill ceiling
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Chaos;Child
No opponent
Erica
No opponent
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Chaos;Child
Murder-mystery hidden information and unseen delusion outcomes
Erica
Branch outcomes hidden on first viewing
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Chaos;Child
Delusion-trigger combinations gate routes and true ending
Erica
Mapping choice branches across replays
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.