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

Optimization · Practiced Mastery
The N64 collectathon that buries five playable Kongs in collectibles.

Optimization · Practiced Mastery
A reimagined Exoddus where Abe crafts tools from scavenged trash to free his enslaved kin.
Donkey Kong 64 leans Optimization (Practiced Mastery); Oddworld: Soulstorm leans Optimization (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Donkey Kong 64
Moderate platforming and minigame dexterity
Oddworld: Soulstorm
Crafting under fire plus precise platforming
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Donkey Kong 64
Scripted bosses and enemies
Oddworld: Soulstorm
Scripted Slig behavior throughout
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Donkey Kong 64
Little randomness; secrets known once found
Oddworld: Soulstorm
Loot containers add mild randomness
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Donkey Kong 64
Routing five Kongs through collectible checklists
Oddworld: Soulstorm
Crafting economy and quarma routing reward optimization
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.