head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is optimization, and it is a single point.

Optimization · Pure Optimization
Stylish JRPG where phantom thieves steal hearts on a tightly optimized school calendar.

Optimization · Pure Optimization
Tests demon-fusion team building and tactical grid optimization against scripted encounter design.
Persona 5 leans Optimization (Pure Optimization); Shin Megami Tensei: Devil Survivor 2 - Record Breaker leans Optimization (Pure Optimization).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Persona 5
Stylish menus, not reflexes
Shin Megami Tensei: Devil Survivor 2 - Record Breaker
Turn-based menus - hands are irrelevant
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Persona 5
Palace enemies use fixed weaknesses
Shin Megami Tensei: Devil Survivor 2 - Record Breaker
Enemy AI follows mappable priorities, never models you
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Persona 5
Fusion alerts and negotiation rolls
Shin Megami Tensei: Devil Survivor 2 - Record Breaker
Demon auction and skill cracks add manageable RNG
Shin Megami Tensei: Devil Survivor 2 - Record Breaker leans a little harder on optimization, though the gap is small.
Persona 5
Confidant calendar routing and baton-pass weakness chains
Shin Megami Tensei: Devil Survivor 2 - Record Breaker
Team building, fusion and grid positioning are deeply 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.