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 turn-based JRPG carried by job, gear, and bond-routing optimization.

Optimization · Pure Optimization
An open-world RPG mostly about discovering and stacking exploitable progression systems.
Like a Dragon: Infinite Wealth leans Optimization (Pure Optimization); The Elder Scrolls V: Skyrim leans Optimization (Pure Optimization).
The Elder Scrolls V: Skyrim leans a little harder on execution, though the gap is small.
Like a Dragon: Infinite Wealth
Turn-based with positioning, low input demand
The Elder Scrolls V: Skyrim
Combat is forgiving; aim and timing rarely punish you.
Like a Dragon: Infinite Wealth leans a little harder on reads, though the gap is small.
Like a Dragon: Infinite Wealth
Scripted enemies
The Elder Scrolls V: Skyrim
Enemy AI is scripted and exploitable; not adaptive.
Like a Dragon: Infinite Wealth leans a little harder on variance, though the gap is small.
Like a Dragon: Infinite Wealth
Drop and ability rolls
The Elder Scrolls V: Skyrim
Loot tables and leveled lists inject mild randomness.
Like a Dragon: Infinite Wealth leans a little harder on optimization, though the gap is small.
Like a Dragon: Infinite Wealth
Job, gear, and bond routing rewarded
The Elder Scrolls V: Skyrim
Skill stacking, enchant loops, and exploits 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.