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 · Pure Mechanics
The last mainline Guitar Hero, wrapping its setlist in a quest with score power-ups.

Execution · Pure Mechanics
The podracing game whose risk-reward boost system creates a brutal pure-speed skill ceiling.
Guitar Hero: Warriors of Rock leans Execution (Pure Mechanics); Star Wars Episode I: Racer leans Execution (Pure Mechanics).
Star Wars Episode I: Racer leans a little harder on execution, though the gap is small.
Guitar Hero: Warriors of Rock
Expert charts and the brutal 2112 finale
Star Wars Episode I: Racer
Boost management at 600mph through canyons is pure hands.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Guitar Hero: Warriors of Rock
Nothing adapts
Star Wars Episode I: Racer
AI racers follow fixed behaviour.
Star Wars Episode I: Racer leans a little harder on variance, though the gap is small.
Guitar Hero: Warriors of Rock
Deterministic charts
Star Wars Episode I: Racer
Fixed tracks; nothing meaningful hidden.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Guitar Hero: Warriors of Rock
Power-up choices and star power routing
Star Wars Episode I: Racer
Pod part upgrades and track memorization converge quickly.
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.