head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is optimization, and it is a single point.

Execution · Practiced Mastery
A 1979 mini-golf simulation testing timing and distance judgment.

Execution · Practiced Mastery
Plannable stealth routing punctuated by precise ballistic marksmanship.
Miniature Golf leans Execution (Practiced Mastery); Sniper Elite III leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Miniature Golf
Timing and aiming the putt is the core skill
Sniper Elite III
Ballistic long shots demand steady, compensated aim
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Miniature Golf
Solo or alternating play, no opponent to read
Sniper Elite III
Enemy AI follows mappable alert and search routines
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Miniature Golf
Fixed obstacles, little randomness
Sniper Elite III
Patrol details and wind vary slightly per attempt
Sniper Elite III leans a little harder on optimization, though the gap is small.
Miniature Golf
Judging angles and distance for each hole is solvable
Sniper Elite III
Open maps reward planned routes, sound masking and relocation
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.