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.

Optimization · Pure Optimization
Building a team and exploiting type-matchup math against scripted trainers.

Optimization · Systems & Chaos
Kid-friendly MMO where wizard students duel with turn-based collectible spell cards.
Pokémon LeafGreen Version leans Optimization (Pure Optimization); Wizard101 leans Optimization (Systems & Chaos).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Pokémon LeafGreen Version
Menu-driven turn battles demand no physical skill
Wizard101
Turn-based card combat needs no dexterity
Wizard101 leans a little harder on reads, though the gap is small.
Pokémon LeafGreen Version
Trainers are scripted; link battles are a side mode
Wizard101
Ranked PvP adds modest human prediction
Wizard101 leans a little harder on variance, though the gap is small.
Pokémon LeafGreen Version
Wild encounters, catch rolls and crits add mappable RNG
Wizard101
Card draws and accuracy fizzles randomise duels
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Pokémon LeafGreen Version
Type matchups and team building are the solvable core
Wizard101
Deck building, school synergies and gear 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.