head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Optimization · Pure Optimization
A 3rd Edition ruleset combat puzzle where multi-classing and feat selection unlock dominant strategies.

Optimization · Pure Optimization
A d20 Star Wars RPG where Force power selection and alignment routing define clear optimal paths.
Icewind Dale II leans Optimization (Pure Optimization); Knights of the Old Republic 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.
Icewind Dale II
Real-time-with-pause negates twitch requirements
Knights of the Old Republic
Pseudo-turn-based d20 combat removes all twitch; timing aids exist but minor
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Icewind Dale II
Scripted enemy routines offer nothing to read or predict adaptively
Knights of the Old Republic
All enemies follow scripted AI behaviour trees without player modelling
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Icewind Dale II
3E feat combinations and hidden enemy resistances create unknown-information layers
Knights of the Old Republic
Loot rolls and pazaak draws provide hidden information layers
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Icewind Dale II
3rd Edition feat optimization and multi-class architecture dominate success
Knights of the Old Republic
Force power selection, feat prerequisites and light/dark routing are systematically 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.