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 football sim testing throw timing and play-calling prediction against opponents.
NBA 2K14 leans Execution (Competitive PvP); NFL Quarterback Club 98 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
NFL Quarterback Club 98
Passing, dodging and timing decides plays
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
NFL Quarterback Club 98
Human opponents read formations, demanding counter-prediction
NFL Quarterback Club 98 leans a little harder on variance, though the gap is small.
NBA 2K14
Shot RNG sways close possessions
NFL Quarterback Club 98
Catch and fumble outcomes carry simulated 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
NFL Quarterback Club 98
Playbook selection and roster tactics run deep
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.