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.

Execution · Practiced Mastery
Big Daddy POV return to Rapture with tighter combat systems.

Optimization · Practiced Mastery
A power-fantasy sandbox that mostly tests collection routing and casual shooting.
BioShock 2 leans Execution (Practiced Mastery); Crackdown 3 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.
BioShock 2
Dual-wield drill and gun timing matter.
Crackdown 3
Aim and traversal matter but generous powers forgive sloppiness
Crackdown 3 leans a little harder on reads, though the gap is small.
BioShock 2
Splicer AI scripted, not adaptive.
Crackdown 3
PvP Wrecking Zone adds light prediction; campaign foes are scripted
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
BioShock 2
Sister-gathering waves add randomness.
Crackdown 3
Open-world enemy placement is fixed once explored
Crackdown 3 leans a little harder on optimization, though the gap is small.
BioShock 2
Plasmid combos and gear loadouts solvable.
Crackdown 3
Orb routing and skill-leveling order drive progression efficiency
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.