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.

Execution · Practiced Mastery
A casual rail shooter testing light aim and upgrade-grind management.

Optimization · Practiced Mastery
The genre-defining 3D open-world crime game set in Liberty City.
Angry Birds Transformers leans Execution (Practiced Mastery); Grand Theft Auto III 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.
Angry Birds Transformers
Tap-targeting towers on rails needs modest accuracy
Grand Theft Auto III
Driving and clunky gunplay set a modest physical bar
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Angry Birds Transformers
Pig defences are placed by script, not thought
Grand Theft Auto III
Enemies are scripted; nothing models the player
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Angry Birds Transformers
Level layouts shuffle lightly between runs
Grand Theft Auto III
Pedestrian and traffic chaos lightly randomises encounters
Grand Theft Auto III leans a little harder on optimization, though the gap is small.
Angry Birds Transformers
Character upgrades and energy economy gate progress
Grand Theft Auto III
Mission routing and city knowledge are learnable systems
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.