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.

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

Optimization · Pure Optimization
Co-op LEGO brawler where unlocking the right character to grab every collectible is the game.
Fable III leans Optimization (Pure Optimization); LEGO Batman: The Videogame leans Optimization (Pure Optimization).
Fable III leans a little harder on execution, though the gap is small.
Fable III
Simplified combat rarely punishes
LEGO Batman: The Videogame
Button-mashy combat with no real fail state
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
LEGO Batman: The Videogame
Scripted goons and bosses
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Fable III
Largely fixed world
LEGO Batman: The Videogame
Stud and brick locations fixed
Fable III leans a little harder on optimization, though the gap is small.
Fable III
Treasury management and kingdom promises drive the endgame
LEGO Batman: The Videogame
Character-ability gating drives collectible completion
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.