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 · Pure Mechanics
The NES light-gun classic of shooting ducks and enduring the dog.

Execution · Pure Mechanics
NES Zapper classic testing raw aim against pop-up gangster targets.
Duck Hunt leans Execution (Pure Mechanics); Hogan's Alley leans Execution (Pure Mechanics).
Hogan's Alley leans a little harder on execution, though the gap is small.
Duck Hunt
Pure light-gun aim and reaction speed
Hogan's Alley
Pure light-gun aim and reaction speed
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Duck Hunt
Ducks fly on simple patterns
Hogan's Alley
Cardboard targets cannot adapt
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Duck Hunt
Flight paths vary a little
Hogan's Alley
Target order randomizes within simple sets
Hogan's Alley leans a little harder on optimization, though the gap is small.
Duck Hunt
Almost nothing to optimise beyond aim
Hogan's Alley
Little to plan beyond gangster-vs-civilian recognition
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.