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
An arena fighter mixing combo execution, build grinding and human prediction online.
Call of Duty leans Execution (Practiced Mastery); Dragon Ball: Xenoverse 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
Dragon Ball: Xenoverse
3D arena combos, vanishes and ki management need practiced hands
Dragon Ball: Xenoverse leans a little harder on reads, though the gap is small.
Call of Duty
Light multiplayer prediction; campaign AI is scripted
Dragon Ball: Xenoverse
Online PvP rewards predicting human mixups; PvE is scripted
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
Dragon Ball: Xenoverse
Skill drops from missions roll randomly
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
Dragon Ball: Xenoverse
Build crafting and attribute allocation shape PvP viability
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.