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.

Optimization · Practiced Mastery
Play-calling chess against the defense with light on-field execution on top.

Execution · Practiced Mastery
A frenetic 3DS action shooter mixing rail flight, ground combat, and weapon fusion.
Joe Montana Football leans Optimization (Practiced Mastery); Kid Icarus: Uprising leans Execution (Practiced Mastery).
Kid Icarus: Uprising leans a little harder on execution, though the gap is small.
Joe Montana Football
Player switching and passing timing matter but stay forgiving
Kid Icarus: Uprising
Stylus aiming through flight and ground combat
Joe Montana Football leans a little harder on reads, though the gap is small.
Joe Montana Football
Out-guessing a friend's play call is the two-player edge
Kid Icarus: Uprising
Multiplayer Light vs Dark adds human opposition
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Joe Montana Football
Hidden play selection per snap, little else random
Kid Icarus: Uprising
Weapon drops are randomised
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Joe Montana Football
Knowing which of 17 plays beats each defense decides drives
Kid Icarus: Uprising
Weapon fusion and intensity-wager risk tuning
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.