head to head
World of Warcraft asks more than Final Fantasy XIV, and the gap is reads.

Optimization · Pure Optimization
An MMORPG where scripted raids reward rotation execution and route memorization.

Optimization · Pure Optimization
An MMORPG dominated by theorycraft, gear math, and rotation execution.
Final Fantasy XIV leans Optimization (Pure Optimization); World of Warcraft leans Optimization (Pure Optimization).
Final Fantasy XIV leans a little harder on execution, though the gap is small.
Final Fantasy XIV
Tight raid rotations and mechanic dodges
World of Warcraft
Rotation APM and mechanics matter in raids
World of Warcraft leans clearly harder on reads.
Final Fantasy XIV
Bosses follow fixed scripted timelines
World of Warcraft
PvP arenas have light read element
World of Warcraft leans clearly harder on variance.
Final Fantasy XIV
Very little RNG in core content
World of Warcraft
Loot tables and crit RNG present
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Final Fantasy XIV
Rotations and raid solves are theorycraft puzzles
World of Warcraft
Gear, talents, and rotation are mathematically solved
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.