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
A break-and-boost JRPG carried by job-routing and party-composition planning.

Optimization · Pure Optimization
Solvable team-building progression through an all-new fixed roster.
Octopath Traveler leans Optimization (Pure Optimization); Pokémon White Version leans Optimization (Pure Optimization).
Octopath Traveler leans a little harder on execution, though the gap is small.
Octopath Traveler
Turn-based, no input demand
Pokémon White Version
Menu battles need no dexterity
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Octopath Traveler
Scripted enemies
Pokémon White Version
Campaign trainers are scripted; competitive play is separate
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Octopath Traveler
Hit, crit, and break rolls
Pokémon White Version
All-new Pokémon are unknowns until the dex fills
Octopath Traveler leans a little harder on optimization, though the gap is small.
Octopath Traveler
Job, break-boost, party routing deeply rewarded
Pokémon White Version
Fresh type matchups still reduce to solvable team building
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.