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 · Practiced Mastery
A driving sim testing smooth vehicle handling against timetables and traffic rules.

Optimization · Pure Optimization
An action RPG that crowns you king and tests your treasury more than your sword.
Bus Driver leans Optimization (Practiced Mastery); Fable III leans Optimization (Pure Optimization).
Bus Driver leans a little harder on execution, though the gap is small.
Bus Driver
Smooth braking and lane discipline are the physical test
Fable III
Simplified combat rarely punishes
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Bus Driver
Traffic follows predictable scripted rules
Fable III
Scripted enemies
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Bus Driver
Routes and conditions are set per scenario
Fable III
Largely fixed world
Fable III leans a little harder on optimization, though the gap is small.
Bus Driver
Timetable adherence and rule-following decide the score
Fable III
Treasury management and kingdom promises drive the endgame
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.