head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is reads, 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
AKI-engine N64 wrestler that perfected the grapple system later refined in No Mercy.
Def Jam: Fight for NY leans Execution (Competitive PvP); WCW/nWo Revenge 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.
WCW/nWo Revenge
AKI grapple timing and reversal windows
WCW/nWo Revenge leans a little harder on reads, though the gap is small.
Def Jam: Fight for NY
Versus humans, baiting grabs and counters matters; AI is mappable.
WCW/nWo Revenge
Human opponents turn reversals into prediction duels
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.
WCW/nWo Revenge
Slight randomness in momentum swings
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.
WCW/nWo Revenge
Learning rosters' move sets and spirit flow converges
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.