head to head
Neither is simply harder - they are hard in different places. Call of Duty: Modern Warfare 2 demands more variance; The King of Fighters XIV demands more reads.

Execution · Competitive PvP
Blockbuster 2009 sequel famous for killstreak chains and frantic multiplayer.

Execution · Competitive PvP
KOF's jump to 3D visuals with a huge fifty-character launch roster.
Call of Duty: Modern Warfare 2 leans Execution (Competitive PvP); The King of Fighters XIV leans Execution (Competitive PvP).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Call of Duty: Modern Warfare 2
Fast time-to-kill rewards raw aim and reflex
The King of Fighters XIV
Max mode confirms and hop pressure test hands
The King of Fighters XIV leans clearly harder on reads.
Call of Duty: Modern Warfare 2
Outguessing human rotations and flanks
The King of Fighters XIV
Classic KOF human mixups demand continual reading
Call of Duty: Modern Warfare 2 leans clearly harder on variance.
Call of Duty: Modern Warfare 2
Spawn flips and killstreak randomness
The King of Fighters XIV
Deterministic 3v3 combat
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Call of Duty: Modern Warfare 2
Killstreak economy, loadout and map knowledge
The King of Fighters XIV
Team order and max-mode damage routes are studied
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.