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 choice-driven comedy adventure with almost no skill test at all.

Variance · Light / Casual
A short authored branching story; the test is choice, not skill.
Tales from the Borderlands leans Variance (Light / Casual); The Walking Dead: Michonne 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.
Tales from the Borderlands
Occasional QTEs are the only physical demand
The Walking Dead: Michonne
Forgiving QTE prompts, no real skill ceiling
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Tales from the Borderlands
No opponent of any kind
The Walking Dead: Michonne
Authored characters, nothing adapts
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Tales from the Borderlands
Story branches are unknown until chosen
The Walking Dead: Michonne
Branch outcomes are hidden only on first viewing
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Tales from the Borderlands
Choices barely change outcomes; nothing to solve
The Walking Dead: Michonne
Almost nothing to solve beyond watching choices play out
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.