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
A modern Gears entry spanning campaign, Horde, Escape, and ranked versus.

Execution · Competitive PvP
A class-based shooter spin-off of the tower-defense series with PvP and co-op modes.
Gears 5 leans Execution (Practiced Mastery); Plants vs. Zombies: Battle for Neighborville leans Execution (Competitive PvP).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Gears 5
Movement tech and shotgun duels remain the core test
Plants vs. Zombies: Battle for Neighborville
aim and movement in class-based shooter combat
Plants vs. Zombies: Battle for Neighborville leans a little harder on reads, though the gap is small.
Gears 5
Ranked versus rewards out-thinking human opponents
Plants vs. Zombies: Battle for Neighborville
predicting human opponents' pushes and flanks
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Gears 5
Escape and Horde inject some run variance
Plants vs. Zombies: Battle for Neighborville
minor loot and spawn randomness
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Gears 5
Character ultimates and map control are learnable
Plants vs. Zombies: Battle for Neighborville
class builds and lane strategy are solvable
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.