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
The original 2003 WWII shooter built around cinematic squad set pieces.

Execution · Practiced Mastery
Reversal-timing execution with human habit-reading layered over wrestling systems.
Call of Duty leans Execution (Practiced Mastery); WWE 2K23 leans Execution (Practiced Mastery).
Call of Duty leans a little harder on execution, though the gap is small.
Call of Duty
Aim and reaction carry the scripted firefights
WWE 2K23
Reversal timing windows and combo strings decide matches
WWE 2K23 leans a little harder on reads, though the gap is small.
Call of Duty
Light multiplayer prediction; campaign AI is scripted
WWE 2K23
Human opponents reward baiting predictable reversal habits
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Call of Duty
Some spawn and hit unpredictability
WWE 2K23
Match stipulations and AI logic add mild chaos
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Call of Duty
Memorising set pieces and weapon positions
WWE 2K23
Move-set knowledge, stamina and meta builds are studyable
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.