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 · Practiced Mastery
A family collect-a-thon testing ability-gated routing rather than reflexes.

Optimization · Light / Casual
Tests very little mechanically - a dark authored story carried by light RPG battles.
LEGO The Hobbit leans Optimization (Practiced Mastery); Wadanohara and the Great Blue Sea leans Optimization (Light / Casual).
LEGO The Hobbit leans a little harder on execution, though the gap is small.
LEGO The Hobbit
Forgiving combat and platforming aimed at families
Wadanohara and the Great Blue Sea
Top-down walking and 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.
LEGO The Hobbit
Orcs are scripted props, never adaptive
Wadanohara and the Great Blue Sea
Story characters never adapt to the player
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
LEGO The Hobbit
Fixed collectible placements, unknown only at first
Wadanohara and the Great Blue Sea
Plot twists are authored, not random
LEGO The Hobbit leans a little harder on optimization, though the gap is small.
LEGO The Hobbit
Character-ability routing for collectibles is the core puzzle
Wadanohara and the Great Blue Sea
Simple RPG battles and light puzzles barely resist
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.