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

Execution · Practiced Mastery
A co-op action-adventure where two players must synchronise execution and planning to break out and stay free.

Execution · Pure Mechanics
Party-sized motion-timing contests with learnable per-event techniques.
A Way Out leans Execution (Practiced Mastery); Mario & Sonic at the Olympic Winter Games leans Execution (Pure Mechanics).
Mario & Sonic at the Olympic Winter Games leans a little harder on execution, though the gap is small.
A Way Out
Timed escapes and combat require responsive, accurate inputs
Mario & Sonic at the Olympic Winter Games
Motion-timing and button precision decide every event
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
A Way Out
Co-op partner coordination requires some social prediction
Mario & Sonic at the Olympic Winter Games
Local human rivals add mild prediction in head-to-head events
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
A Way Out
Enemy patrols have scripted paths with some unpredictability
Mario & Sonic at the Olympic Winter Games
Events are fixed; minor physics wobble
A Way Out leans a little harder on optimization, though the gap is small.
A Way Out
Escape routes and combat approaches have learnable optimal lines
Mario & Sonic at the Olympic Winter Games
Each event has a learnable optimal 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.