head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is variance, and it is a single point.

Execution · Competitive PvP
A hip-hop themed brawler where customized fighters batter each other through New York clubs.

Execution · Competitive PvP
Arena-fighter execution and couch-versus prediction across an enormous anime roster.
Def Jam: Fight for NY leans Execution (Competitive PvP); Dragon Ball Z: Budokai Tenkaichi 2 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.
Def Jam: Fight for NY
Combo timing, grapple inputs, environment slams demand solid hands.
Dragon Ball Z: Budokai Tenkaichi 2
Beam clashes, vanish timing and arena movement reward fast hands
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Def Jam: Fight for NY
Versus humans, baiting grabs and counters matters; AI is mappable.
Dragon Ball Z: Budokai Tenkaichi 2
Versus friends, baiting transformations and dodges matters
Def Jam: Fight for NY leans a little harder on variance, though the gap is small.
Def Jam: Fight for NY
Minor stage and AI behaviour randomness.
Dragon Ball Z: Budokai Tenkaichi 2
Full movesets are public knowledge
Def Jam: Fight for NY leans a little harder on optimization, though the gap is small.
Def Jam: Fight for NY
Fighting-style blends, move purchases, venue weapons reward system knowledge.
Dragon Ball Z: Budokai Tenkaichi 2
A 120-character roster of matchup and item knowledge
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.