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

Optimization · Pure Optimization
Maintaining senate favor and province chains while executing real-time cohort tactics.

Optimization · Pure Optimization
An MMORPG dominated by theorycraft, gear math, and rotation execution.
Total War: Rome II leans Optimization (Pure Optimization); World of Warcraft 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.
Total War: Rome II
Cohort line management and flanking cavalry demand real-time micro
World of Warcraft
Rotation APM and mechanics matter in raids
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Total War: Rome II
AI generals follow scripted behaviors without adapting to the player
World of Warcraft
PvP arenas have light read element
Total War: Rome II leans a little harder on variance, though the gap is small.
Total War: Rome II
Random political events and dynastic loyalty shifts add campaign variance
World of Warcraft
Loot tables and crit RNG present
World of Warcraft leans a little harder on optimization, though the gap is small.
Total War: Rome II
Senate favor management and province chains form a solvable campaign system
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.