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 broken-system RPG where influence manipulation and prestige class chaining produce dominant power spikes.

Optimization · Pure Optimization
A deep 3.5E optimization puzzle where prestige class chaining and feat synergies determine party effectiveness.
Knights of the Old Republic II: The Sith Lords leans Optimization (Pure Optimization); Neverwinter Nights 2 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.
Knights of the Old Republic II: The Sith Lords
Pseudo-turn-based d20 system makes twitch irrelevant throughout
Neverwinter Nights 2
Tactical pause negates twitch; positioning is deliberate not reactive
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Knights of the Old Republic II: The Sith Lords
Influence system uses scripted dialogue triggers, no adaptive opponent
Neverwinter Nights 2
Companion AI and enemy scripting are fixed, non-adaptive routines
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Knights of the Old Republic II: The Sith Lords
Influence thresholds and hidden stat distributions create first-play unknowns
Neverwinter Nights 2
Hidden enemy stat blocks and variable dungeon RNG create unknowns
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Knights of the Old Republic II: The Sith Lords
Prestige class chaining and influence-stat transfer create near-broken optimization ceilings
Neverwinter Nights 2
3.5E feat synergies and prestige class planning define optimal builds
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.