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 · Practiced Mastery
Crowd-control execution against memorised enemy waves in a classic belt-scroller.

Execution · Practiced Mastery
Memorising scripted boxer patterns and executing split-second counters.
Streets of Rage 3 leans Execution (Practiced Mastery); Super Punch-Out!! leans Execution (Practiced Mastery).
Super Punch-Out!! leans a little harder on execution, though the gap is small.
Streets of Rage 3
Perfect inputs trivialise crowd control, combos and weapon timing
Super Punch-Out!!
Frame-tight dodges and counters decide every bout
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Streets of Rage 3
Co-op partner aside, enemies follow scripted aggression patterns
Super Punch-Out!!
Opponents are scripted pattern puzzles, not adapting minds
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Streets of Rage 3
Enemy waves are fixed once a route is learned
Super Punch-Out!!
Patterns are fixed once learned - nothing random
Super Punch-Out!! leans a little harder on optimization, though the gap is small.
Streets of Rage 3
Routing enemy spawns and special-meter management is the depth layer
Super Punch-Out!!
Memorising each boxer's tells and optimal counters is the game
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.