head to head
Neither is simply harder - they are hard in different places. Blades of Steel demands more reads; DOOM (2016) demands more optimization.

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

Execution · Pure Mechanics
Push-forward arena FPS where movement and aim are the whole game.
Blades of Steel leans Execution (Pure Mechanics); DOOM (2016) leans Execution (Pure Mechanics).
DOOM (2016) leans a little harder on execution, though the gap is small.
Blades of Steel
Skating, passing and shot timing decide every rush
DOOM (2016)
Aim, movement, glory-kill timing all peak.
Blades of Steel leans clearly harder on reads.
Blades of Steel
Versus a human, goalie duels become guessing games
DOOM (2016)
Demons scripted attack patterns.
Blades of Steel leans a little harder on variance, though the gap is small.
Blades of Steel
Fights and bounces add small arcade chaos
DOOM (2016)
Minimal encounter randomness.
DOOM (2016) leans clearly harder on optimization.
Blades of Steel
Angle exploits on the goalie are quickly mapped
DOOM (2016)
Rune and weapon mod picks meaningful.
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.