head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Optimization · Practiced Mastery
An open-world stealth-action game where a turncoat assassin hunts his old brotherhood across the North Atlantic.

Optimization · Practiced Mastery
A Wii physics puzzler about toppling or surgically dismantling block towers.
Assassin's Creed Rogue leans Optimization (Practiced Mastery); Boom Blox leans Optimization (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 Rogue
Forgiving parkour and counter-heavy combat ask little
Boom Blox
Throw aim and timing matter but stay forgiving
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Assassin's Creed Rogue
Stalker assassins ambush by script, not adaptation
Boom Blox
Party multiplayer adds light human interference
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Assassin's Creed Rogue
Some naval weather and patrol noise
Boom Blox
Physics tumbles add mild unpredictability
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Assassin's Creed Rogue
Ship upgrades, fleet economy, and collectible routing dominate
Boom Blox
Finding the optimal block to pull is the real test
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.