head to head
Ultima Online asks more than The Elder Scrolls Online, and the gap is reads.

Optimization · Practiced Mastery
An MMO where bar-swap rotations and set-build optimization carry endgame.

Optimization · Mind & Math
The pioneering sandbox MMORPG of player economies, housing, and open PvP.
The Elder Scrolls Online leans Optimization (Practiced Mastery); Ultima Online leans Optimization (Mind & Math).
The Elder Scrolls Online leans a little harder on execution, though the gap is small.
The Elder Scrolls Online
Action combat with weaving and rotations
Ultima Online
PvP timing and macro dexterity matter
Ultima Online leans clearly harder on reads.
The Elder Scrolls Online
Cyrodiil PvP adds modest reads layer
Ultima Online
Player killers and traders adapt to you
Ultima Online leans a little harder on variance, though the gap is small.
The Elder Scrolls Online
Loot tables and set drops
Ultima Online
Open-world encounters and loot uncertainty
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
The Elder Scrolls Online
Rotations, sets, and build theorycraft central
Ultima Online
Skill builds and the player economy reward system mastery
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.