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

Variance · Light / Casual
A choice-driven Batman story with negligible skill demands.

Variance · Light / Casual
A choice-driven comedy adventure with almost no skill test at all.
Batman: The Telltale Series leans Variance (Light / Casual); Tales from the Borderlands 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.
Batman: The Telltale Series
Quick-time combat is choreography, not skill
Tales from the Borderlands
Occasional QTEs are the only physical demand
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Batman: The Telltale Series
Villains follow the script, never adapting
Tales from the Borderlands
No opponent of any kind
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Batman: The Telltale Series
Story branches are hidden information once through
Tales from the Borderlands
Story branches are unknown until chosen
Batman: The Telltale Series leans a little harder on optimization, though the gap is small.
Batman: The Telltale Series
Detective scenes are guided with no real solving
Tales from the Borderlands
Choices barely change outcomes; nothing to solve
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.