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

Execution · Competitive PvP
Mobile shooter execution with human prediction, plus loot variance in battle royale.

Execution · Competitive PvP
A class-based shooter testing approachable aim and counter-picking against human teams.
Call of Duty: Mobile leans Execution (Competitive PvP); Plants vs. Zombies: Garden Warfare leans Execution (Competitive PvP).
Call of Duty: Mobile leans a little harder on execution, though the gap is small.
Call of Duty: Mobile
Touch or controller aim and movement decide gunfights
Plants vs. Zombies: Garden Warfare
Third-person aim and ability timing carry every fight
Call of Duty: Mobile leans a little harder on reads, though the gap is small.
Call of Duty: Mobile
Human lobbies adapt rotations and peeks each match
Plants vs. Zombies: Garden Warfare
Human opponents flank and juke in class-based skirmishes
Call of Duty: Mobile leans a little harder on variance, though the gap is small.
Call of Duty: Mobile
Battle royale drops and loot add run-to-run randomness
Plants vs. Zombies: Garden Warfare
Sticker pack unlocks randomise progression, not matches
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Call of Duty: Mobile
Loadout meta and map spawn knowledge reward study
Plants vs. Zombies: Garden Warfare
Class counters and objective timing reward team planning
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.