head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Execution · Practiced Mastery
An arena fighter mixing combo execution, build grinding and human prediction online.

Execution · Practiced Mastery
Browser tank duels mixing aim, human positioning reads, and upgrade grind.
Dragon Ball: Xenoverse leans Execution (Practiced Mastery); Tanki Online leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Dragon Ball: Xenoverse
3D arena combos, vanishes and ki management need practiced hands
Tanki Online
Aiming turrets and dodging shells decides duels
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Dragon Ball: Xenoverse
Online PvP rewards predicting human mixups; PvE is scripted
Tanki Online
Human tankers feint around corners and flag routes
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Dragon Ball: Xenoverse
Skill drops from missions roll randomly
Tanki Online
Spawns and drops add light battlefield noise
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Dragon Ball: Xenoverse
Build crafting and attribute allocation shape PvP viability
Tanki Online
Equipment upgrades and loadout economy gate the grind
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.