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 · Pure Mechanics
Arcade hockey reflexes with light shot-angle guessing against human opponents.

Execution · Pure Mechanics
WWII gunfight execution with light multiplayer prediction.
Blades of Steel leans Execution (Pure Mechanics); Call of Duty 3 leans Execution (Pure Mechanics).
Blades of Steel leans a little harder on execution, though the gap is small.
Blades of Steel
Skating, passing and shot timing decide every rush
Call of Duty 3
Aimbot trivialises both campaign and multiplayer gunfights
Blades of Steel leans a little harder on reads, though the gap is small.
Blades of Steel
Versus a human, goalie duels become guessing games
Call of Duty 3
Multiplayer adds modest human positional prediction
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Blades of Steel
Fights and bounces add small arcade chaos
Call of Duty 3
Scripted setpieces and spawn flow add minor unknowns
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Blades of Steel
Angle exploits on the goalie are quickly mapped
Call of Duty 3
Map knowledge and weapon choice reward light study
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.