head to head
Guild Wars asks more than The Elder Scrolls V: Skyrim, and the gap is reads.

Optimization · Pure Optimization
Instanced online RPG where deck-like eight-skill builds decide battles before they begin.

Optimization · Pure Optimization
An open-world RPG mostly about discovering and stacking exploitable progression systems.
Guild Wars leans Optimization (Pure Optimization); The Elder Scrolls V: Skyrim leans Optimization (Pure Optimization).
Guild Wars leans a little harder on execution, though the gap is small.
Guild Wars
Interrupt timing and kiting in skirmishes
The Elder Scrolls V: Skyrim
Combat is forgiving; aim and timing rarely punish you.
Guild Wars leans clearly harder on reads.
Guild Wars
GvG and arena metagame against adapting humans
The Elder Scrolls V: Skyrim
Enemy AI is scripted and exploitable; not adaptive.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Guild Wars
Modest drop and spawn randomness
The Elder Scrolls V: Skyrim
Loot tables and leveled lists inject mild randomness.
Guild Wars leans a little harder on optimization, though the gap is small.
Guild Wars
Eight-skill build construction is the game's soul
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.