head to head
Call of Duty: Black Ops asks more than Harry Potter: Quidditch Champions, and the gap is execution.

Execution · Competitive PvP
Cold War-era shooter pairing twitch multiplayer with the cult Zombies mode.

Execution · Competitive PvP
Flying execution and positional prediction in role-based fantasy sport matches.
Call of Duty: Black Ops leans Execution (Competitive PvP); Harry Potter: Quidditch Champions leans Execution (Competitive PvP).
Call of Duty: Black Ops leans clearly harder on execution.
Call of Duty: Black Ops
Gunfights hinge on aim and reaction speed
Harry Potter: Quidditch Champions
Flying lines, dodges and shot timing decide possessions
Call of Duty: Black Ops leans clearly harder on reads.
Call of Duty: Black Ops
Reading human opponents' positioning and timing
Harry Potter: Quidditch Champions
PvP matches reward predicting opposing chasers and keepers
Call of Duty: Black Ops leans a little harder on variance, though the gap is small.
Call of Duty: Black Ops
Spawns, care packages, zombies RNG
Harry Potter: Quidditch Champions
Snitch spawns and scrambles add light randomness
Call of Duty: Black Ops leans a little harder on optimization, though the gap is small.
Call of Duty: Black Ops
Class builds, map control, zombies routing
Harry Potter: Quidditch Champions
Role mastery and position play are learnable systems
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.