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
An open sandbox where mastering crafting and building systems dominates over any physical skill.

Optimization · Pure Optimization
Lane defense classic about managing a sun economy against shambling waves.
Minecraft: Java Edition leans Optimization (Pure Optimization); Plants vs. Zombies leans Optimization (Pure Optimization).
Minecraft: Java Edition leans a little harder on execution, though the gap is small.
Minecraft: Java Edition
barely relevant, building/PvP negligible for most
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.
Minecraft: Java Edition
no adaptive opponent, sandbox play
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.
Minecraft: Java Edition
world gen and mob spawns randomized
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.
Minecraft: Java Edition
redstone, base/resource routing solvable systems
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.