Building comparison
head to head
Guitar Hero III: Legends of Rockvsosu!
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.
Guitar Hero III: Legends of Rock
Execution · Pure Mechanics
Series peak whose hardest charts became a benchmark for human finger speed.
osu!
Execution · Pure Mechanics
Rhythm game where clicking circles to the beat becomes an athletic discipline.
Guitar Hero III: Legends of Rock leans Execution (Pure Mechanics); osu! leans Execution (Pure Mechanics).
Guitar Hero III: Legends of Rockosu!
Axis by axis
Execution10 vs 10
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Guitar Hero III: Legends of Rock
Through the Fire and Flames defines a hands ceiling
osu!
Pixel-perfect cursor aim and tapping at extreme speeds
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
osu!
No opponent interaction in scoring
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
osu!
Beatmaps are fully deterministic
Optimization2 vs 2
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Guitar Hero III: Legends of Rock
Squeeze paths and star power optimization for scores
osu!
Mod choices and map selection for ranking
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.