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
Shot-timing execution and play-calling prediction against human or scripted defenses.
Def Jam: Fight for NY leans Execution (Competitive PvP); NBA 2K12 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.
NBA 2K12
Shot timing and stick handles decide possessions
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.
NBA 2K12
Online opponents bait defenses and adapt play calls
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.
NBA 2K12
Shot RNG adds bounded noise to outcomes
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.
NBA 2K12
Play calling, rosters and matchup exploits are studied 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.