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

Execution · Competitive PvP
Arcade wrestling that tests grapple timing and baiting a human into bad pins.

Execution · Competitive PvP
Fast arena combat that tests combo execution and counter prediction against human opponents.
3 Count Bout leans Execution (Competitive PvP); Dragon Ball Z: Budokai Tenkaichi 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.
3 Count Bout
Grapple timing and button mashing decide most exchanges
Dragon Ball Z: Budokai Tenkaichi
Combo timing, dashes and beam clashes reward fast hands
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
3 Count Bout
Human opponents bait grapples and pins unpredictably
Dragon Ball Z: Budokai Tenkaichi
Versus humans, predicting teleport counters and ki tactics matters
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
3 Count Bout
Nothing hidden in the ring
Dragon Ball Z: Budokai Tenkaichi
Almost nothing random once movesets are known
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
3 Count Bout
Hidden moves and wrestler matchup knowledge reward study
Dragon Ball Z: Budokai Tenkaichi
Character matchups and attribute builds are learnable systems
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.