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

Execution · Practiced Mastery
Cinematic combo-action reboot of Castlevania in the God of War mold.

Optimization · Practiced Mastery
Zelda-flavored musou about juggling battlefield objectives while mowing hordes.
Castlevania: Lords of Shadow leans Execution (Practiced Mastery); Hyrule Warriors leans Optimization (Practiced Mastery).
Castlevania: Lords of Shadow leans a little harder on execution, though the gap is small.
Castlevania: Lords of Shadow
Combo timing, dodges, and QTE precision
Hyrule Warriors
Combo strings and weak-point gauge timing
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Castlevania: Lords of Shadow
Bosses and titans are fully scripted
Hyrule Warriors
Enemy hordes are mindless and scripted
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Castlevania: Lords of Shadow
Deterministic encounters
Hyrule Warriors
Minor drop and mission randomness
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Castlevania: Lords of Shadow
Combo unlocks and learning fixed movesets
Hyrule Warriors
Keep management, character builds, and map priorities
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.