Building comparison
head to head
Guitar Hero III: Legends of RockvsSpin Rhythm XD
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.
Guitar Hero III: Legends of Rock
Execution · Pure Mechanics
Series peak whose hardest charts became a benchmark for human finger speed.
Spin Rhythm XD
Execution · Pure Mechanics
A PC rhythm game where matching colors on a spinning wheel turns charts into analog choreography.
Guitar Hero III: Legends of Rock leans Execution (Pure Mechanics); Spin Rhythm XD leans Execution (Pure Mechanics).
Guitar Hero III: Legends of RockSpin Rhythm XD
Axis by axis
Execution10 vs 9
Guitar Hero III: Legends of Rock leans a little harder on execution, though the gap is small.
Guitar Hero III: Legends of Rock
Through the Fire and Flames defines a hands ceiling
Spin Rhythm XD
Wheel-spinning, flicks, and taps demand analog precision
Reads0 vs 0
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Guitar Hero III: Legends of Rock
Charts are fixed; boss battles are gimmicks
Spin Rhythm XD
Charts never adapt
Variance0 vs 0
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Guitar Hero III: Legends of Rock
Deterministic note charts
Spin Rhythm XD
Deterministic charts
Optimization2 vs 3
Spin Rhythm XD leans a little harder on optimization, though the gap is small.
Guitar Hero III: Legends of Rock
Squeeze paths and star power optimization for scores
Spin Rhythm XD
Chart study and controller technique choices
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.