head to head
Neither is simply harder - they are hard in different places. Dragon Ball Z: Ultimate Tenkaichi demands more variance; Jump Force demands more execution.

Reads · Competitive PvP
Spectacle fighting reduced to rock-paper-scissors prediction in clash moments.

Execution · Competitive PvP
A crossover anime arena fighter pitting Shonen Jump heroes against each other.
Dragon Ball Z: Ultimate Tenkaichi leans Reads (Competitive PvP); Jump Force leans Execution (Competitive PvP).
Jump Force leans clearly harder on execution.
Dragon Ball Z: Ultimate Tenkaichi
Simplified inputs flatten the physical ceiling
Jump Force
3D arena combos with generous tracking
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Dragon Ball Z: Ultimate Tenkaichi
Clash minigames are near rock-paper-scissors against humans
Jump Force
Human opponents force guard-break guessing
Dragon Ball Z: Ultimate Tenkaichi leans clearly harder on variance.
Dragon Ball Z: Ultimate Tenkaichi
Guessing-game clashes inject coin-flip outcomes
Jump Force
Full information arena duels
Jump Force leans a little harder on optimization, though the gap is small.
Dragon Ball Z: Ultimate Tenkaichi
Character knowledge matters but systems are shallow
Jump Force
Team picks and awakening meter management
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.