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 · Competitive PvP
Family-friendly class shooter pitting plants against zombies across PvP and co-op.

Execution · Practiced Mastery
Alternate-history alien-invasion shooter known for its inventive Chimeran arsenal.
Plants vs. Zombies: Garden Warfare 2 leans Execution (Competitive PvP); 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.
Plants vs. Zombies: Garden Warfare 2
Third-person shooting with forgiving hitboxes
Resistance: Fall of Man
Aim and weapon handling against Chimera hordes.
Plants vs. Zombies: Garden Warfare 2 leans a little harder on reads, though the gap is small.
Plants vs. Zombies: Garden Warfare 2
Human opponents adapt in PvP modes
Resistance: Fall of Man
Sizable competitive multiplayer added genuine human opposition.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Plants vs. Zombies: Garden Warfare 2
Class ability rolls are minimal
Resistance: Fall of Man
Campaign unknowns on first pass.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Plants vs. Zombies: Garden Warfare 2
Class counters and map knowledge help
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.