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 · Practiced Mastery
Open-world Hyrule built on physics puzzles and exploration over reflex tests.

Optimization · Practiced Mastery
Tests patience with scripted encounters and light adventure-game routing.
The Legend of Zelda: Breath of the Wild leans Optimization (Practiced Mastery); The Lord of the Rings: The Fellowship of the Ring leans Optimization (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
The Legend of Zelda: Breath of the Wild
Parry timing and aiming matter but forgiving.
The Lord of the Rings: The Fellowship of the Ring
Basic melee, archery and stealth need only modest timing
The Legend of Zelda: Breath of the Wild leans a little harder on reads, though the gap is small.
The Legend of Zelda: Breath of the Wild
Enemies follow fixed scripted behaviors.
The Lord of the Rings: The Fellowship of the Ring
Enemies follow simple scripts; nothing adapts
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
The Legend of Zelda: Breath of the Wild
Weapon drops and weather lightly randomized.
The Lord of the Rings: The Fellowship of the Ring
Encounters are fixed; little is random once seen
The Legend of Zelda: Breath of the Wild leans a little harder on optimization, though the gap is small.
The Legend of Zelda: Breath of the Wild
Shrines, cooking, traversal routes fully solvable.
The Lord of the Rings: The Fellowship of the Ring
Learning levels, item use and encounter order carries the game
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.
full breakdown
The Legend of Zelda: Breath of the Wild →
full breakdown
The Lord of the Rings: The Fellowship of the Ring →