head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is reads, and it is a single point.

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

Optimization · Pure Optimization
A medieval siege-warfare RTS emphasizing economy management and castle building.
Guild Wars leans Optimization (Pure Optimization); Stronghold Crusader II 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.
Guild Wars
Interrupt timing and kiting in skirmishes
Stronghold Crusader II
unit micro and siege management require dexterity
Guild Wars leans a little harder on reads, though the gap is small.
Guild Wars
GvG and arena metagame against adapting humans
Stronghold Crusader II
reading human opponents' siege timing and attacks
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
Stronghold Crusader II
minor resource and combat RNG
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Guild Wars
Eight-skill build construction is the game's soul
Stronghold Crusader II
economy and siege strategy dominate outcomes
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.