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

Execution · Competitive PvP
Team arena brawls testing mobile combo execution and reading enemy engages.
Def Jam: Fight for NY leans Execution (Competitive PvP); Naruto to Boruto: Shinobi Striker 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.
Naruto to Boruto: Shinobi Striker
Aerial movement and combo timing decide 4v4 skirmishes
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.
Naruto to Boruto: Shinobi Striker
Human opponents fake engages and rotations constantly
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Def Jam: Fight for NY
Minor stage and AI behaviour randomness.
Naruto to Boruto: Shinobi Striker
Some matchmaking and map objective randomness
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Def Jam: Fight for NY
Fighting-style blends, move purchases, venue weapons reward system knowledge.
Naruto to Boruto: Shinobi Striker
Class loadouts and jutsu matchups reward study
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.