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
Visual novel crossed with tactical RPG battles where dialogue choices steer story branches and partner evolutions.

Optimization · Pure Optimization
Lane defense classic about managing a sun economy against shambling waves.
Digimon Survive 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.
Digimon Survive
Grid tactics with no time pressure
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.
Digimon Survive
Enemy AI is scripted and predictable
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.
Digimon Survive
Hidden branching affinity choices on first playthrough
Plants vs. Zombies
Wave timing and lane pressure vary mildly
Plants vs. Zombies leans a little harder on optimization, though the gap is small.
Digimon Survive
Positioning and evolution choices are solvable tactics
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.