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.

Optimization · Pure Optimization
Tactical mecha RPG where customizing wanzer parts and link systems outweighs battlefield improvisation.

Optimization · Pure Optimization
Lane defense classic about managing a sun economy against shambling waves.
Front Mission 4 leans Optimization (Pure Optimization); Plants vs. Zombies leans Optimization (Pure Optimization).
Plants vs. Zombies leans a little harder on execution, though the gap is small.
Front Mission 4
Menu-driven turn-based combat
Plants vs. Zombies
Clicking to plant, minimal pressure
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Front Mission 4
Fixed mission AI with set behaviors
Plants vs. Zombies
Zombie waves follow set compositions
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Front Mission 4
Accuracy rolls and link-attack triggers
Plants vs. Zombies
Wave timing and lane pressure vary mildly
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Front Mission 4
Wanzer part builds and pilot skill loadouts are the game
Plants vs. Zombies
Sun economy and lane setups are near-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.