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
A retro gridiron sim mixing input timing with play-call guessing against an opponent.

Execution · Practiced Mastery
The sequel adding Horde mode to the campaign-plus-versus cover shooter formula.
ABC Monday Night Football leans Execution (Practiced Mastery); Gears of War 2 leans Execution (Practiced Mastery).
Gears of War 2 leans a little harder on execution, though the gap is small.
ABC Monday Night Football
Timing passes, jukes and tackles demands controller precision
Gears of War 2
Gnasher battles and movement tech set the ceiling
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
ABC Monday Night Football
Two-player matches involve guessing the human's play call
Gears of War 2
Human opponents in versus drive prediction play
ABC Monday Night Football leans a little harder on variance, though the gap is small.
ABC Monday Night Football
Fumble and catch rolls add bounded football randomness
Gears of War 2
Horde spawns add mild randomness
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
ABC Monday Night Football
Play-calling and roster knowledge form a solvable layer
Gears of War 2
Power-weapon timing and positioning are solvable
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.