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

Optimization · Practiced Mastery
Ezio's Renaissance revenge tale of parkour, assassination, and villa-building across Italy.

Execution · Practiced Mastery
A cinematic Victorian cover shooter about knights hunting half-breeds with exotic weaponry.
Assassin's Creed II leans Optimization (Practiced Mastery); The Order: 1886 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.
Assassin's Creed II
Counter-heavy combat stays forgiving
The Order: 1886
Standard cover shooting with quick-time events
The Order: 1886 leans a little harder on reads, though the gap is small.
Assassin's Creed II
Guards follow scripts
The Order: 1886
Scripted setpiece enemies
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Assassin's Creed II
Fixed world and missions
The Order: 1886
Heavily authored, nothing random
Assassin's Creed II leans a little harder on optimization, though the gap is small.
Assassin's Creed II
Villa economy and route planning, lightly
The Order: 1886
Linear encounters, light tactical layer
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.