head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is variance, and it is a single point.

Execution · Practiced Mastery
Classic action execution through fixed levels and scripted boss patterns.

Execution · Pure Mechanics
A lovingly curated Beatles career retrospective playable as a full band with vocal harmonies.
Spider-Man leans Execution (Practiced Mastery); The Beatles: Rock Band leans Execution (Pure Mechanics).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Spider-Man
Swinging, combat and timed escapes need real dexterity
The Beatles: Rock Band
Gentler charts plus three-part vocal harmonies
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Spider-Man
Villains repeat fixed boss patterns
The Beatles: Rock Band
Nothing adapts
Spider-Man leans a little harder on variance, though the gap is small.
Spider-Man
Level events are scripted and quickly known
The Beatles: Rock Band
Fixed charts
Spider-Man leans a little harder on optimization, though the gap is small.
Spider-Man
Boss patterns and level routes are fully learnable
The Beatles: Rock Band
Harmony arrangement and overdrive timing
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.