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
Arcade dogfighting reflexes against scripted enemy flight patterns.

Execution · Pure Mechanics
A physics comedy about an octopus in a suit flailing through fatherhood without blowing his cover.
Air Combat leans Execution (Practiced Mastery); Octodad: Dadliest Catch leans Execution (Pure Mechanics).
Octodad: Dadliest Catch leans a little harder on execution, though the gap is small.
Air Combat
Stick control and missile timing carry every dogfight
Octodad: Dadliest Catch
Deliberately clumsy limb controls are the whole challenge
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Air Combat
Enemy pilots fly scripted arcade patterns
Octodad: Dadliest Catch
No opponents, just suspicion meters
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Air Combat
Missions are fixed and fully learnable
Octodad: Dadliest Catch
Physics wobble adds slapstick unpredictability
Air Combat leans a little harder on optimization, though the gap is small.
Air Combat
Plane purchases and mission knowledge smooth the campaign
Octodad: Dadliest Catch
Simple objectives, little system depth
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.