head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Execution · Practiced Mastery
Luchador metroidvania mixing brawler combos with demanding color-switch platforming.

Execution · Practiced Mastery
Crowd-control execution against memorised enemy patterns, stage by stage.
Guacamelee! leans Execution (Practiced Mastery); Streets of Rage leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Guacamelee!
Combo brawling and dimension-swap platforming challenges
Streets of Rage
Spacing, crowd control and throw timing carry every stage
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Guacamelee!
Enemies telegraph fixed patterns
Streets of Rage
Enemy gangs attack from fixed arcade patterns
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Guacamelee!
Authored world with no randomness
Streets of Rage
Spawns are essentially deterministic per stage
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Guacamelee!
Ability routing, combos, and secret hunting
Streets of Rage
One-credit clears come from learned positioning and patterns
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.