head to head
Baldur's Gate II: Shadows of Amn asks more than The Elder Scrolls V: Skyrim, and the gap is variance.

Optimization · Pure Optimization
The deepest optimization puzzle in the Infinity Engine lineage, rewarding encyclopedic knowledge of 2nd Edition AD&D systems.

Optimization · Pure Optimization
An open-world RPG mostly about discovering and stacking exploitable progression systems.
Baldur's Gate II: Shadows of Amn leans Optimization (Pure Optimization); The Elder Scrolls V: Skyrim leans Optimization (Pure Optimization).
The Elder Scrolls V: Skyrim leans a little harder on execution, though the gap is small.
Baldur's Gate II: Shadows of Amn
Pause-and-plan removes twitch entirely; micro-placement has marginal value
The Elder Scrolls V: Skyrim
Combat is forgiving; aim and timing rarely punish you.
Baldur's Gate II: Shadows of Amn leans a little harder on reads, though the gap is small.
Baldur's Gate II: Shadows of Amn
Enemies run scripted behaviour patterns, never modelling your tactics
The Elder Scrolls V: Skyrim
Enemy AI is scripted and exploitable; not adaptive.
Baldur's Gate II: Shadows of Amn leans clearly harder on variance.
Baldur's Gate II: Shadows of Amn
Loot randomization and enemy ability use create hidden-information layers
The Elder Scrolls V: Skyrim
Loot tables and leveled lists inject mild randomness.
Baldur's Gate II: Shadows of Amn leans clearly harder on optimization.
Baldur's Gate II: Shadows of Amn
Mage spell sequences, dual-class builds and Spellhold routing define mastery
The Elder Scrolls V: Skyrim
Skill stacking, enchant loops, and exploits are deeply solvable.
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.