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

Execution · Light / Casual
A meditative underwater journey about swimming through gorgeous ocean vistas.

Execution · Light / Casual
A choice-driven narrative adventure following Clementine through a collapsing world.
ABZÛ leans Execution (Light / Casual); The Walking Dead: Season Two leans Execution (Light / Casual).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
ABZÛ
Gentle swimming controls, no fail states
The Walking Dead: Season Two
Occasional QTEs with generous timing
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
ABZÛ
No opponents at all
The Walking Dead: Season Two
Characters react along scripted branches
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
ABZÛ
Scripted reveals, minimal surprise
The Walking Dead: Season Two
Choice outcomes are unknown only on first play
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
ABZÛ
Linear path, nothing to solve
The Walking Dead: Season Two
Almost nothing to optimize; the story carries
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.