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

Execution · Pure Mechanics
Cover-shooter aim and QTE timing through scripted film setpieces.

Execution · Practiced Mastery
Alternate-history alien-invasion shooter known for its inventive Chimeran arsenal.
James Bond 007: Quantum of Solace leans Execution (Pure Mechanics); Resistance: Fall of Man 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.
James Bond 007: Quantum of Solace
Cover shooting and quick-time events run on aim and timing
Resistance: Fall of Man
Aim and weapon handling against Chimera hordes.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
James Bond 007: Quantum of Solace
Multiplayer adds modest human prediction; campaign is scripted
Resistance: Fall of Man
Sizable competitive multiplayer added genuine human opposition.
Resistance: Fall of Man leans a little harder on variance, though the gap is small.
James Bond 007: Quantum of Solace
Setpiece encounters repeat identically
Resistance: Fall of Man
Campaign unknowns on first pass.
Resistance: Fall of Man leans a little harder on optimization, though the gap is small.
James Bond 007: Quantum of Solace
Weapon choice and cover routes are shallow systems
Resistance: Fall of Man
Exotic weapon selection per encounter rewards system knowledge.
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.