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
Shot timing and play selection against opponents adjusting to your tendencies.

Execution · Competitive PvP
A wrestling game testing grapple timing and prediction in versus matches.
NBA 2K14 leans Execution (Competitive PvP); WCW vs. nWo: World Tour 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.
NBA 2K14
Shot release timing and dribble chains gate scoring
WCW vs. nWo: World Tour
Grapple timing and move inputs need precision
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
NBA 2K14
Online opponents counter your favourite plays
WCW vs. nWo: World Tour
Versus play rewards reading opponent grapple attempts
WCW vs. nWo: World Tour leans a little harder on variance, though the gap is small.
NBA 2K14
Shot RNG sways close possessions
WCW vs. nWo: World Tour
Move reversals and spirit meter add randomness
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
NBA 2K14
Playbook knowledge and roster management reward study
WCW vs. nWo: World Tour
Move-set knowledge and stamina management matter
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.