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

Optimization · Pure Optimization
An action RPG that crowns you king and tests your treasury more than your sword.

Optimization · Practiced Mastery
Slow-burn revenge adventure built on daily routines, detective legwork, and QTEs in 1986 Yokosuka.
Fable III leans Optimization (Pure Optimization); Shenmue leans Optimization (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Fable III
Simplified combat rarely punishes
Shenmue
QTEs and light brawling demand modest timing
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Fable III
Scripted enemies
Shenmue
NPCs run daily scripts; nothing adapts to you
Shenmue leans a little harder on variance, though the gap is small.
Fable III
Largely fixed world
Shenmue
First playthrough leans on not knowing schedules and clues
Fable III leans a little harder on optimization, though the gap is small.
Fable III
Treasury management and kingdom promises drive the endgame
Shenmue
Clue order, NPC schedules, and move training are fully mappable
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.